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Finding the Fourth Proportional to 397,471.72, 548,510.58 and 227,706.52

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Solution

The fourth proportional to 397,471.72, 548,510.58 and 227,706.52 is: 314,234.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    397,471.72 : 548,510.58 = 227,706.52 : x
  2. Step 2: Convert to fraction form
    397,471.72/548,510.58 = 227,706.52/x
  3. Step 3: Cross multiply
    397,471.72x = 548,510.58 × 227,706.52
  4. Step 4: Simplify right side
    397,471.72x = 124,899,435,354.98
  5. Step 5: Solve for x
    x = 124,899,435,354.98/397,471.72
  6. Step 6: Final answer
    x = 314,234.77

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.