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Finding the Fourth Proportional to 424,654.67, 586,005.85 and 231,063.18

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Solution

The fourth proportional to 424,654.67, 586,005.85 and 231,063.18 is: 318,857.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    424,654.67 : 586,005.85 = 231,063.18 : x
  2. Step 2: Convert to fraction form
    424,654.67/586,005.85 = 231,063.18/x
  3. Step 3: Cross multiply
    424,654.67x = 586,005.85 × 231,063.18
  4. Step 4: Simplify right side
    424,654.67x = 135,404,375,199.60
  5. Step 5: Solve for x
    x = 135,404,375,199.60/424,654.67
  6. Step 6: Final answer
    x = 318,857.61

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.