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Finding the Third Proportional to 220.22 and 326.53

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Solution

The third proportional to 220.22 and 326.53 is: 484.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    220.22 : 326.53 = 326.53 : x
  2. Step 2: Convert to fraction form
    220.22/326.53 = 326.53/x
  3. Step 3: Cross multiply
    220.22x = 326.53 × 326.53
  4. Step 4: Simplify right side
    220.22x = 106,622.66
  5. Step 5: Solve for x
    x = 106,622.66/220.22
  6. Step 6: Final answer
    x = 484.17

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Why These Related Problems?

These problems maintain the same ratio (1.48) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.