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Finding the Fourth Proportional to 363,906.10, 545,859.15 and 325,414.90

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Solution

The fourth proportional to 363,906.10, 545,859.15 and 325,414.90 is: 488,122.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    363,906.10 : 545,859.15 = 325,414.90 : x
  2. Step 2: Convert to fraction form
    363,906.10/545,859.15 = 325,414.90/x
  3. Step 3: Cross multiply
    363,906.10x = 545,859.15 × 325,414.90
  4. Step 4: Simplify right side
    363,906.10x = 177,630,700,711.34
  5. Step 5: Solve for x
    x = 177,630,700,711.34/363,906.10
  6. Step 6: Final answer
    x = 488,122.35

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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.