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Finding the Fourth Proportional to 316,711.35, 437,061.69 and 173,471.76

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Solution

The fourth proportional to 316,711.35, 437,061.69 and 173,471.76 is: 239,391.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,711.35 : 437,061.69 = 173,471.76 : x
  2. Step 2: Convert to fraction form
    316,711.35/437,061.69 = 173,471.76/x
  3. Step 3: Cross multiply
    316,711.35x = 437,061.69 × 173,471.76
  4. Step 4: Simplify right side
    316,711.35x = 75,817,860,592.87
  5. Step 5: Solve for x
    x = 75,817,860,592.87/316,711.35
  6. Step 6: Final answer
    x = 239,391.04

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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.