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Finding the Fourth Proportional to 363,963.20, 502,248.48 and 200,587.28

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Solution

The fourth proportional to 363,963.20, 502,248.48 and 200,587.28 is: 276,799.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    363,963.20 : 502,248.48 = 200,587.28 : x
  2. Step 2: Convert to fraction form
    363,963.20/502,248.48 = 200,587.28/x
  3. Step 3: Cross multiply
    363,963.20x = 502,248.48 × 200,587.28
  4. Step 4: Simplify right side
    363,963.20x = 100,744,656,487.33
  5. Step 5: Solve for x
    x = 100,744,656,487.33/363,963.20
  6. Step 6: Final answer
    x = 276,799.02

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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.