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Finding the Third Proportional to 414.38 and 908.44

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Solution

The third proportional to 414.38 and 908.44 is: 1,991.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    414.38 : 908.44 = 908.44 : x
  2. Step 2: Convert to fraction form
    414.38/908.44 = 908.44/x
  3. Step 3: Cross multiply
    414.38x = 908.44 × 908.44
  4. Step 4: Simplify right side
    414.38x = 825,258.69
  5. Step 5: Solve for x
    x = 825,258.69/414.38
  6. Step 6: Final answer
    x = 1,991.57

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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.