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Finding the Fourth Proportional to 641,691.60, 962,537.40 and 585,704.40

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Solution

The fourth proportional to 641,691.60, 962,537.40 and 585,704.40 is: 878,556.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    641,691.60 : 962,537.40 = 585,704.40 : x
  2. Step 2: Convert to fraction form
    641,691.60/962,537.40 = 585,704.40/x
  3. Step 3: Cross multiply
    641,691.60x = 962,537.40 × 585,704.40
  4. Step 4: Simplify right side
    641,691.60x = 563,762,390,344.56
  5. Step 5: Solve for x
    x = 563,762,390,344.56/641,691.60
  6. Step 6: Final answer
    x = 878,556.60

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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.