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Finding the Third Proportional to 322.75 and 461.75

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Solution

The third proportional to 322.75 and 461.75 is: 660.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    322.75 : 461.75 = 461.75 : x
  2. Step 2: Convert to fraction form
    322.75/461.75 = 461.75/x
  3. Step 3: Cross multiply
    322.75x = 461.75 × 461.75
  4. Step 4: Simplify right side
    322.75x = 213,213.06
  5. Step 5: Solve for x
    x = 213,213.06/322.75
  6. Step 6: Final answer
    x = 660.61

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Why These Related Problems?

These problems maintain the same ratio (1.43) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.