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Finding the Fourth Proportional to 539,108.20, 807,593.10 and 472,623.40

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Solution

The fourth proportional to 539,108.20, 807,593.10 and 472,623.40 is: 707,997.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    539,108.20 : 807,593.10 = 472,623.40 : x
  2. Step 2: Convert to fraction form
    539,108.20/807,593.10 = 472,623.40/x
  3. Step 3: Cross multiply
    539,108.20x = 807,593.10 × 472,623.40
  4. Step 4: Simplify right side
    539,108.20x = 381,687,396,738.54
  5. Step 5: Solve for x
    x = 381,687,396,738.54/539,108.20
  6. Step 6: Final answer
    x = 707,997.76

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.