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Finding the Fourth Proportional to 668,819.76, 922,997.88 and 367,024.56

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Solution

The fourth proportional to 668,819.76, 922,997.88 and 367,024.56 is: 506,508.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    668,819.76 : 922,997.88 = 367,024.56 : x
  2. Step 2: Convert to fraction form
    668,819.76/922,997.88 = 367,024.56/x
  3. Step 3: Cross multiply
    668,819.76x = 922,997.88 × 367,024.56
  4. Step 4: Simplify right side
    668,819.76x = 338,762,890,787.93
  5. Step 5: Solve for x
    x = 338,762,890,787.93/668,819.76
  6. Step 6: Final answer
    x = 506,508.50

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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.