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Finding the Third Proportional to 262.27 and 574.31

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Solution

The third proportional to 262.27 and 574.31 is: 1,257.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    262.27 : 574.31 = 574.31 : x
  2. Step 2: Convert to fraction form
    262.27/574.31 = 574.31/x
  3. Step 3: Cross multiply
    262.27x = 574.31 × 574.31
  4. Step 4: Simplify right side
    262.27x = 329,834.85
  5. Step 5: Solve for x
    x = 329,834.85/262.27
  6. Step 6: Final answer
    x = 1,257.64

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.