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Finding the Fourth Proportional to 641,473.76, 961,546.28 and 527,961.29

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Solution

The fourth proportional to 641,473.76, 961,546.28 and 527,961.29 is: 791,395.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    641,473.76 : 961,546.28 = 527,961.29 : x
  2. Step 2: Convert to fraction form
    641,473.76/961,546.28 = 527,961.29/x
  3. Step 3: Cross multiply
    641,473.76x = 961,546.28 × 527,961.29
  4. Step 4: Simplify right side
    641,473.76x = 507,659,206,935.96
  5. Step 5: Solve for x
    x = 507,659,206,935.96/641,473.76
  6. Step 6: Final answer
    x = 791,395.13

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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.