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Finding the Third Proportional to 481.31 and 567.75

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Solution

The third proportional to 481.31 and 567.75 is: 669.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    481.31 : 567.75 = 567.75 : x
  2. Step 2: Convert to fraction form
    481.31/567.75 = 567.75/x
  3. Step 3: Cross multiply
    481.31x = 567.75 × 567.75
  4. Step 4: Simplify right side
    481.31x = 322,340.06
  5. Step 5: Solve for x
    x = 322,340.06/481.31
  6. Step 6: Final answer
    x = 669.71

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Why These Related Problems?

These problems maintain the same ratio (1.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.