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Finding the Fourth Proportional to 591,704.20, 887,556.30 and 217,678.60

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Solution

The fourth proportional to 591,704.20, 887,556.30 and 217,678.60 is: 326,517.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    591,704.20 : 887,556.30 = 217,678.60 : x
  2. Step 2: Convert to fraction form
    591,704.20/887,556.30 = 217,678.60/x
  3. Step 3: Cross multiply
    591,704.20x = 887,556.30 × 217,678.60
  4. Step 4: Simplify right side
    591,704.20x = 193,202,012,805.18
  5. Step 5: Solve for x
    x = 193,202,012,805.18/591,704.20
  6. Step 6: Final answer
    x = 326,517.90

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Similar ratio
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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.