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Finding the Third Proportional to 322 and 460.75

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Solution

The third proportional to 322 and 460.75 is: 659.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    322 : 460.75 = 460.75 : x
  2. Step 2: Convert to fraction form
    322/460.75 = 460.75/x
  3. Step 3: Cross multiply
    322x = 460.75 × 460.75
  4. Step 4: Simplify right side
    322x = 212,290.56
  5. Step 5: Solve for x
    x = 212,290.56/322
  6. Step 6: Final answer
    x = 659.29

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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.