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Finding the Fourth Proportional to 363,956.20, 502,238.82 and 200,580.28

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Solution

The fourth proportional to 363,956.20, 502,238.82 and 200,580.28 is: 276,789.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    363,956.20 : 502,238.82 = 200,580.28 : x
  2. Step 2: Convert to fraction form
    363,956.20/502,238.82 = 200,580.28/x
  3. Step 3: Cross multiply
    363,956.20x = 502,238.82 × 200,580.28
  4. Step 4: Simplify right side
    363,956.20x = 100,739,203,142.47
  5. Step 5: Solve for x
    x = 100,739,203,142.47/363,956.20
  6. Step 6: Final answer
    x = 276,789.36

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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.