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Finding the Third Proportional to 399,349.13 and 868,668.75

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Solution

The third proportional to 399,349.13 and 868,668.75 is: 1,889,538.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    399,349.13 : 868,668.75 = 868,668.75 : x
  2. Step 2: Convert to fraction form
    399,349.13/868,668.75 = 868,668.75/x
  3. Step 3: Cross multiply
    399,349.13x = 868,668.75 × 868,668.75
  4. Step 4: Simplify right side
    399,349.13x = 754,585,397,226.56
  5. Step 5: Solve for x
    x = 754,585,397,226.56/399,349.13
  6. Step 6: Final answer
    x = 1,889,538.13

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Why These Related Problems?

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