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Finding the Fourth Proportional to 591,640.80, 887,461.20 and 192,294.60

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Solution

The fourth proportional to 591,640.80, 887,461.20 and 192,294.60 is: 288,441.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    591,640.80 : 887,461.20 = 192,294.60 : x
  2. Step 2: Convert to fraction form
    591,640.80/887,461.20 = 192,294.60/x
  3. Step 3: Cross multiply
    591,640.80x = 887,461.20 × 192,294.60
  4. Step 4: Simplify right side
    591,640.80x = 170,653,996,469.52
  5. Step 5: Solve for x
    x = 170,653,996,469.52/591,640.80
  6. Step 6: Final answer
    x = 288,441.90

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Similar ratio
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1.5x scale

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.