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Finding the Third Proportional to 393,260.06 and 861,553.13

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Solution

The third proportional to 393,260.06 and 861,553.13 is: 1,887,488.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    393,260.06 : 861,553.13 = 861,553.13 : x
  2. Step 2: Convert to fraction form
    393,260.06/861,553.13 = 861,553.13/x
  3. Step 3: Cross multiply
    393,260.06x = 861,553.13 × 861,553.13
  4. Step 4: Simplify right side
    393,260.06x = 742,273,787,197.27
  5. Step 5: Solve for x
    x = 742,273,787,197.27/393,260.06
  6. Step 6: Final answer
    x = 1,887,488.35

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.