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Finding the Fourth Proportional to 502,871.87, 693,963.18 and 276,517.37

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Solution

The fourth proportional to 502,871.87, 693,963.18 and 276,517.37 is: 381,593.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    502,871.87 : 693,963.18 = 276,517.37 : x
  2. Step 2: Convert to fraction form
    502,871.87/693,963.18 = 276,517.37/x
  3. Step 3: Cross multiply
    502,871.87x = 693,963.18 × 276,517.37
  4. Step 4: Simplify right side
    502,871.87x = 191,892,869,940.62
  5. Step 5: Solve for x
    x = 191,892,869,940.62/502,871.87
  6. Step 6: Final answer
    x = 381,593.97

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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.