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Finding the Third Proportional to 327.38 and 717.75

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Solution

The third proportional to 327.38 and 717.75 is: 1,573.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    327.38 : 717.75 = 717.75 : x
  2. Step 2: Convert to fraction form
    327.38/717.75 = 717.75/x
  3. Step 3: Cross multiply
    327.38x = 717.75 × 717.75
  4. Step 4: Simplify right side
    327.38x = 515,165.06
  5. Step 5: Solve for x
    x = 515,165.06/327.38
  6. Step 6: Final answer
    x = 1,573.62

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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.