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Finding the Fourth Proportional to 502,871.37, 693,962.49 and 276,516.87

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Solution

The fourth proportional to 502,871.37, 693,962.49 and 276,516.87 is: 381,593.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    502,871.37 : 693,962.49 = 276,516.87 : x
  2. Step 2: Convert to fraction form
    502,871.37/693,962.49 = 276,516.87/x
  3. Step 3: Cross multiply
    502,871.37x = 693,962.49 × 276,516.87
  4. Step 4: Simplify right side
    502,871.37x = 191,892,335,632.21
  5. Step 5: Solve for x
    x = 191,892,335,632.21/502,871.37
  6. Step 6: Final answer
    x = 381,593.28

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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.