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Finding the Fourth Proportional to 502,891.68, 693,961.56 and 276,537.36

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Solution

The fourth proportional to 502,891.68, 693,961.56 and 276,537.36 is: 381,605.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    502,891.68 : 693,961.56 = 276,537.36 : x
  2. Step 2: Convert to fraction form
    502,891.68/693,961.56 = 276,537.36/x
  3. Step 3: Cross multiply
    502,891.68x = 693,961.56 × 276,537.36
  4. Step 4: Simplify right side
    502,891.68x = 191,906,297,743.88
  5. Step 5: Solve for x
    x = 191,906,297,743.88/502,891.68
  6. Step 6: Final answer
    x = 381,605.63

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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.