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Finding the Third Proportional to 324.56 and 708.56

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Solution

The third proportional to 324.56 and 708.56 is: 1,546.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    324.56 : 708.56 = 708.56 : x
  2. Step 2: Convert to fraction form
    324.56/708.56 = 708.56/x
  3. Step 3: Cross multiply
    324.56x = 708.56 × 708.56
  4. Step 4: Simplify right side
    324.56x = 502,060.82
  5. Step 5: Solve for x
    x = 502,060.82/324.56
  6. Step 6: Final answer
    x = 1,546.88

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.