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Finding the Third Proportional to 392,457.38 and 532,621.13

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Solution

The third proportional to 392,457.38 and 532,621.13 is: 722,843.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    392,457.38 : 532,621.13 = 532,621.13 : x
  2. Step 2: Convert to fraction form
    392,457.38/532,621.13 = 532,621.13/x
  3. Step 3: Cross multiply
    392,457.38x = 532,621.13 × 532,621.13
  4. Step 4: Simplify right side
    392,457.38x = 283,685,262,796.27
  5. Step 5: Solve for x
    x = 283,685,262,796.27/392,457.38
  6. Step 6: Final answer
    x = 722,843.50

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Why These Related Problems?

These problems maintain the same ratio (1.36) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.