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Finding the Fourth Proportional to 635,747.08, 876,671 and 442,373.88

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Solution

The fourth proportional to 635,747.08, 876,671 and 442,373.88 is: 610,016.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    635,747.08 : 876,671 = 442,373.88 : x
  2. Step 2: Convert to fraction form
    635,747.08/876,671 = 442,373.88/x
  3. Step 3: Cross multiply
    635,747.08x = 876,671 × 442,373.88
  4. Step 4: Simplify right side
    635,747.08x = 387,816,351,753.48
  5. Step 5: Solve for x
    x = 387,816,351,753.48/635,747.08
  6. Step 6: Final answer
    x = 610,016.73

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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.