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Finding the Fourth Proportional to 643,952.70, 966,101.85 and 574,314.30

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Solution

The fourth proportional to 643,952.70, 966,101.85 and 574,314.30 is: 861,625.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    643,952.70 : 966,101.85 = 574,314.30 : x
  2. Step 2: Convert to fraction form
    643,952.70/966,101.85 = 574,314.30/x
  3. Step 3: Cross multiply
    643,952.70x = 966,101.85 × 574,314.30
  4. Step 4: Simplify right side
    643,952.70x = 554,846,107,711.46
  5. Step 5: Solve for x
    x = 554,846,107,711.46/643,952.70
  6. Step 6: Final answer
    x = 861,625.56

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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.