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Finding the Third Proportional to 392.75 and 588.75

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Solution

The third proportional to 392.75 and 588.75 is: 882.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    392.75 : 588.75 = 588.75 : x
  2. Step 2: Convert to fraction form
    392.75/588.75 = 588.75/x
  3. Step 3: Cross multiply
    392.75x = 588.75 × 588.75
  4. Step 4: Simplify right side
    392.75x = 346,626.56
  5. Step 5: Solve for x
    x = 346,626.56/392.75
  6. Step 6: Final answer
    x = 882.56

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.