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Finding the Fourth Proportional to 408,753, 612,863.82 and 195,405.48

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Solution

The fourth proportional to 408,753, 612,863.82 and 195,405.48 is: 292,981.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    408,753 : 612,863.82 = 195,405.48 : x
  2. Step 2: Convert to fraction form
    408,753/612,863.82 = 195,405.48/x
  3. Step 3: Cross multiply
    408,753x = 612,863.82 × 195,405.48
  4. Step 4: Simplify right side
    408,753x = 119,756,948,921.73
  5. Step 5: Solve for x
    x = 119,756,948,921.73/408,753
  6. Step 6: Final answer
    x = 292,981.21

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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.