2-2:3•78+470,10:30,4

To clarify, it seems like you're presenting a mathematical expression involving different operations. However, the expression given has some ambiguity with how it's written.

Assuming you meant to structure it in a more standard mathematical format, I'll break it down step-by-step based on what I can interpret.

Let's assume your expression is:

\[ 2 - \frac{2}{3} \cdot 78 + 470.10 + 30 + 4 \]

Now, let's solve it step-by-step.

First, calculate the multiplication: \[ \frac{2}{3} \cdot 78 = \frac{156}{3} = 52 \]

Now substitute this back into the expression: \[ 2 - 52 + 470.10 + 30 + 4 \]

Now perform the subtraction and addition from left to right:

1. \( 2 - 52 = -50 \)
2. \( -50 + 470.10 = 420.10 \)
3. \( 420.10 + 30 = 450.10 \)
4. \( 450.10 + 4 = 454.10 \)

Thus, the final result is: \[ \boxed{454.10} \]

If this interpretation is incorrect or if you intended a different expression, please provide clarification!