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Finding the Third Proportional to 226.75 and 329.50

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Solution

The third proportional to 226.75 and 329.50 is: 478.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    226.75 : 329.50 = 329.50 : x
  2. Step 2: Convert to fraction form
    226.75/329.50 = 329.50/x
  3. Step 3: Cross multiply
    226.75x = 329.50 × 329.50
  4. Step 4: Simplify right side
    226.75x = 108,570.25
  5. Step 5: Solve for x
    x = 108,570.25/226.75
  6. Step 6: Final answer
    x = 478.81

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Why These Related Problems?

These problems maintain the same ratio (1.45) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.