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Finding the Third Proportional to 417 and 701.25

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Solution

The third proportional to 417 and 701.25 is: 1,179.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    417 : 701.25 = 701.25 : x
  2. Step 2: Convert to fraction form
    417/701.25 = 701.25/x
  3. Step 3: Cross multiply
    417x = 701.25 × 701.25
  4. Step 4: Simplify right side
    417x = 491,751.56
  5. Step 5: Solve for x
    x = 491,751.56/417
  6. Step 6: Final answer
    x = 1,179.26

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Why These Related Problems?

These problems maintain the same ratio (1.68) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.