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Finding the Fourth Proportional to 635,918.85, 876,691.11 and 507,293.88

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Solution

The fourth proportional to 635,918.85, 876,691.11 and 507,293.88 is: 699,366.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    635,918.85 : 876,691.11 = 507,293.88 : x
  2. Step 2: Convert to fraction form
    635,918.85/876,691.11 = 507,293.88/x
  3. Step 3: Cross multiply
    635,918.85x = 876,691.11 × 507,293.88
  4. Step 4: Simplify right side
    635,918.85x = 444,740,034,753.41
  5. Step 5: Solve for x
    x = 444,740,034,753.41/635,918.85
  6. Step 6: Final answer
    x = 699,366.02

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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.