226,8:0,54+3,46•18

To solve the expression \( 226.8 : 0.54 + 3.46 \cdot 18 \), we'll proceed with the operations step by step:

1. Division: \( 226.8 \div 0.54 \) \[ 226.8 \div 0.54 \approx 420 \]

2. Multiplication: \( 3.46 \cdot 18 \) \[ 3.46 \cdot 18 = 62.28 \]

3. Addition: Now, add the results from the previous steps: \[ 420 + 62.28 = 482.28 \]

Thus, the result of the expression \( 226.8 : 0.54 + 3.46 \cdot 18 \) is approximately \( 482.28 \).