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Finding the Fourth Proportional to 502,447.38, 693,382.86 and 276,092.88

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Solution

The fourth proportional to 502,447.38, 693,382.86 and 276,092.88 is: 381,011.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    502,447.38 : 693,382.86 = 276,092.88 : x
  2. Step 2: Convert to fraction form
    502,447.38/693,382.86 = 276,092.88/x
  3. Step 3: Cross multiply
    502,447.38x = 693,382.86 × 276,092.88
  4. Step 4: Simplify right side
    502,447.38x = 191,438,070,760.04
  5. Step 5: Solve for x
    x = 191,438,070,760.04/502,447.38
  6. Step 6: Final answer
    x = 381,011.18

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1.5x scale

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.