To convert the decimal 0.264 to a rational number, you would set \( x = 0.264 \) and multiply both sides by 1000.
Here's how it works:
- Set \( x = 0.264 \).
- Multiply both sides by 1000 to eliminate the decimal:
\[ 1000x = 264 \]
So, \( x = \frac{264}{1000} \).
You can simplify this fraction if necessary, but 1000 is the correct number to multiply by in this case.