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Finding the Fourth Proportional to 636,832.43, 955,691.52 and 411,634.31

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Solution

The fourth proportional to 636,832.43, 955,691.52 and 411,634.31 is: 617,737.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    636,832.43 : 955,691.52 = 411,634.31 : x
  2. Step 2: Convert to fraction form
    636,832.43/955,691.52 = 411,634.31/x
  3. Step 3: Cross multiply
    636,832.43x = 955,691.52 × 411,634.31
  4. Step 4: Simplify right side
    636,832.43x = 393,395,419,408.05
  5. Step 5: Solve for x
    x = 393,395,419,408.05/636,832.43
  6. Step 6: Final answer
    x = 617,737.73

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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.