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Finding the Third Proportional to 291 and 466.75

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Solution

The third proportional to 291 and 466.75 is: 748.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    291 : 466.75 = 466.75 : x
  2. Step 2: Convert to fraction form
    291/466.75 = 466.75/x
  3. Step 3: Cross multiply
    291x = 466.75 × 466.75
  4. Step 4: Simplify right side
    291x = 217,855.56
  5. Step 5: Solve for x
    x = 217,855.56/291
  6. Step 6: Final answer
    x = 748.64

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Why These Related Problems?

These problems maintain the same ratio (1.60) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.