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Finding the Fourth Proportional to 502,842.60, 693,920.52 and 276,487.56

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Solution

The fourth proportional to 502,842.60, 693,920.52 and 276,487.56 is: 381,551.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    502,842.60 : 693,920.52 = 276,487.56 : x
  2. Step 2: Convert to fraction form
    502,842.60/693,920.52 = 276,487.56/x
  3. Step 3: Cross multiply
    502,842.60x = 693,920.52 × 276,487.56
  4. Step 4: Simplify right side
    502,842.60x = 191,860,391,408.73
  5. Step 5: Solve for x
    x = 191,860,391,408.73/502,842.60
  6. Step 6: Final answer
    x = 381,551.59

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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.