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Finding the Fourth Proportional to 461,613.60, 691,169.22 and 239,531.04

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Solution

The fourth proportional to 461,613.60, 691,169.22 and 239,531.04 is: 358,647.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    461,613.60 : 691,169.22 = 239,531.04 : x
  2. Step 2: Convert to fraction form
    461,613.60/691,169.22 = 239,531.04/x
  3. Step 3: Cross multiply
    461,613.60x = 691,169.22 × 239,531.04
  4. Step 4: Simplify right side
    461,613.60x = 165,556,482,082.59
  5. Step 5: Solve for x
    x = 165,556,482,082.59/461,613.60
  6. Step 6: Final answer
    x = 358,647.32

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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.