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Finding the Fourth Proportional to 502,675.92, 693,675.18 and 276,319.80

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Solution

The fourth proportional to 502,675.92, 693,675.18 and 276,319.80 is: 381,311.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    502,675.92 : 693,675.18 = 276,319.80 : x
  2. Step 2: Convert to fraction form
    502,675.92/693,675.18 = 276,319.80/x
  3. Step 3: Cross multiply
    502,675.92x = 693,675.18 × 276,319.80
  4. Step 4: Simplify right side
    502,675.92x = 191,676,187,002.56
  5. Step 5: Solve for x
    x = 191,676,187,002.56/502,675.92
  6. Step 6: Final answer
    x = 381,311.66

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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.