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Finding the Fourth Proportional to 425,098.80, 586,636.97 and 231,506.92

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Solution

The fourth proportional to 425,098.80, 586,636.97 and 231,506.92 is: 319,479.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    425,098.80 : 586,636.97 = 231,506.92 : x
  2. Step 2: Convert to fraction form
    425,098.80/586,636.97 = 231,506.92/x
  3. Step 3: Cross multiply
    425,098.80x = 586,636.97 × 231,506.92
  4. Step 4: Simplify right side
    425,098.80x = 135,810,517,658.59
  5. Step 5: Solve for x
    x = 135,810,517,658.59/425,098.80
  6. Step 6: Final answer
    x = 319,479.89

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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.