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Finding the Third Proportional to 264 and 402.75

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Solution

The third proportional to 264 and 402.75 is: 614.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    264 : 402.75 = 402.75 : x
  2. Step 2: Convert to fraction form
    264/402.75 = 402.75/x
  3. Step 3: Cross multiply
    264x = 402.75 × 402.75
  4. Step 4: Simplify right side
    264x = 162,207.56
  5. Step 5: Solve for x
    x = 162,207.56/264
  6. Step 6: Final answer
    x = 614.42

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These problems maintain the same ratio (1.53) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.