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Finding the Fourth Proportional to 534,572.72, 801,006.12 and 391,756.10

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Solution

The fourth proportional to 534,572.72, 801,006.12 and 391,756.10 is: 587,009.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    534,572.72 : 801,006.12 = 391,756.10 : x
  2. Step 2: Convert to fraction form
    534,572.72/801,006.12 = 391,756.10/x
  3. Step 3: Cross multiply
    534,572.72x = 801,006.12 × 391,756.10
  4. Step 4: Simplify right side
    534,572.72x = 313,799,033,647.33
  5. Step 5: Solve for x
    x = 313,799,033,647.33/534,572.72
  6. Step 6: Final answer
    x = 587,009.07

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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.