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Finding the Third Proportional to 225.75 and 322.88

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Solution

The third proportional to 225.75 and 322.88 is: 461.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    225.75 : 322.88 = 322.88 : x
  2. Step 2: Convert to fraction form
    225.75/322.88 = 322.88/x
  3. Step 3: Cross multiply
    225.75x = 322.88 × 322.88
  4. Step 4: Simplify right side
    225.75x = 104,248.27
  5. Step 5: Solve for x
    x = 104,248.27/225.75
  6. Step 6: Final answer
    x = 461.79

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These problems maintain the same ratio (1.43) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.