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Finding the Fourth Proportional to 641,996.70, 962,073.45 and 472,191.90

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Solution

The fourth proportional to 641,996.70, 962,073.45 and 472,191.90 is: 707,610.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    641,996.70 : 962,073.45 = 472,191.90 : x
  2. Step 2: Convert to fraction form
    641,996.70/962,073.45 = 472,191.90/x
  3. Step 3: Cross multiply
    641,996.70x = 962,073.45 × 472,191.90
  4. Step 4: Simplify right side
    641,996.70x = 454,283,290,295.06
  5. Step 5: Solve for x
    x = 454,283,290,295.06/641,996.70
  6. Step 6: Final answer
    x = 707,610.01

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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.