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Finding the Fourth Proportional to 691,757.92, 954,627.24 and 385,854.11

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Solution

The fourth proportional to 691,757.92, 954,627.24 and 385,854.11 is: 532,479.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    691,757.92 : 954,627.24 = 385,854.11 : x
  2. Step 2: Convert to fraction form
    691,757.92/954,627.24 = 385,854.11/x
  3. Step 3: Cross multiply
    691,757.92x = 954,627.24 × 385,854.11
  4. Step 4: Simplify right side
    691,757.92x = 368,346,846,439.76
  5. Step 5: Solve for x
    x = 368,346,846,439.76/691,757.92
  6. Step 6: Final answer
    x = 532,479.41

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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.