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Finding the Fourth Proportional to 498,177.86, 687,500.64 and 283,348.88

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Solution

The fourth proportional to 498,177.86, 687,500.64 and 283,348.88 is: 391,030.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    498,177.86 : 687,500.64 = 283,348.88 : x
  2. Step 2: Convert to fraction form
    498,177.86/687,500.64 = 283,348.88/x
  3. Step 3: Cross multiply
    498,177.86x = 687,500.64 × 283,348.88
  4. Step 4: Simplify right side
    498,177.86x = 194,802,536,343.28
  5. Step 5: Solve for x
    x = 194,802,536,343.28/498,177.86
  6. Step 6: Final answer
    x = 391,030.10

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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.