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Finding the Fourth Proportional to 329,649,763.28, 494,800,248.76 and 247,482,948.56

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Solution

The fourth proportional to 329,649,763.28, 494,800,248.76 and 247,482,948.56 is: 371,468,868.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    329,649,763.28 : 494,800,248.76 = 247,482,948.56 : x
  2. Step 2: Convert to fraction form
    329,649,763.28/494,800,248.76 = 247,482,948.56/x
  3. Step 3: Cross multiply
    329,649,763.28x = 494,800,248.76 × 247,482,948.56
  4. Step 4: Simplify right side
    329,649,763.28x = 122,454,624,511,346,288
  5. Step 5: Solve for x
    x = 122,454,624,511,346,288/329,649,763.28
  6. Step 6: Final answer
    x = 371,468,868.33

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.