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Finding the Fourth Proportional to 861,726.16, 1,188,874.29 and 498,952

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Solution

The fourth proportional to 861,726.16, 1,188,874.29 and 498,952 is: 688,375.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    861,726.16 : 1,188,874.29 = 498,952 : x
  2. Step 2: Convert to fraction form
    861,726.16/1,188,874.29 = 498,952/x
  3. Step 3: Cross multiply
    861,726.16x = 1,188,874.29 × 498,952
  4. Step 4: Simplify right side
    861,726.16x = 593,191,204,744.08
  5. Step 5: Solve for x
    x = 593,191,204,744.08/861,726.16
  6. Step 6: Final answer
    x = 688,375.53

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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.