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Finding the Third Proportional to 399,359.25 and 868,686.75

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Solution

The third proportional to 399,359.25 and 868,686.75 is: 1,889,568.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    399,359.25 : 868,686.75 = 868,686.75 : x
  2. Step 2: Convert to fraction form
    399,359.25/868,686.75 = 868,686.75/x
  3. Step 3: Cross multiply
    399,359.25x = 868,686.75 × 868,686.75
  4. Step 4: Simplify right side
    399,359.25x = 754,616,669,625.56
  5. Step 5: Solve for x
    x = 754,616,669,625.56/399,359.25
  6. Step 6: Final answer
    x = 1,889,568.53

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These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.