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Finding the Fourth Proportional to 366,691.57, 550,195.40 and 198,330.41

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Solution

The fourth proportional to 366,691.57, 550,195.40 and 198,330.41 is: 297,581.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    366,691.57 : 550,195.40 = 198,330.41 : x
  2. Step 2: Convert to fraction form
    366,691.57/550,195.40 = 198,330.41/x
  3. Step 3: Cross multiply
    366,691.57x = 550,195.40 × 198,330.41
  4. Step 4: Simplify right side
    366,691.57x = 109,120,479,645.95
  5. Step 5: Solve for x
    x = 109,120,479,645.95/366,691.57
  6. Step 6: Final answer
    x = 297,581.10

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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.