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Finding the Fourth Proportional to 502,990.24, 694,132.32 and 276,639.52

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Solution

The fourth proportional to 502,990.24, 694,132.32 and 276,639.52 is: 381,765.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    502,990.24 : 694,132.32 = 276,639.52 : x
  2. Step 2: Convert to fraction form
    502,990.24/694,132.32 = 276,639.52/x
  3. Step 3: Cross multiply
    502,990.24x = 694,132.32 × 276,639.52
  4. Step 4: Simplify right side
    502,990.24x = 192,024,431,821.29
  5. Step 5: Solve for x
    x = 192,024,431,821.29/502,990.24
  6. Step 6: Final answer
    x = 381,765.72

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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.