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Finding the Third Proportional to 264.25 and 406.75

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Solution

The third proportional to 264.25 and 406.75 is: 626.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    264.25 : 406.75 = 406.75 : x
  2. Step 2: Convert to fraction form
    264.25/406.75 = 406.75/x
  3. Step 3: Cross multiply
    264.25x = 406.75 × 406.75
  4. Step 4: Simplify right side
    264.25x = 165,445.56
  5. Step 5: Solve for x
    x = 165,445.56/264.25
  6. Step 6: Final answer
    x = 626.09

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These problems maintain the same ratio (1.54) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.