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Finding the Fourth Proportional to 502,792.28, 693,835.62 and 276,436.04

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Solution

The fourth proportional to 502,792.28, 693,835.62 and 276,436.04 is: 381,471.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    502,792.28 : 693,835.62 = 276,436.04 : x
  2. Step 2: Convert to fraction form
    502,792.28/693,835.62 = 276,436.04/x
  3. Step 3: Cross multiply
    502,792.28x = 693,835.62 × 276,436.04
  4. Step 4: Simplify right side
    502,792.28x = 191,801,171,203.75
  5. Step 5: Solve for x
    x = 191,801,171,203.75/502,792.28
  6. Step 6: Final answer
    x = 381,471.99

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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.