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Finding the Third Proportional to 444.50 and 721.75

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Solution

The third proportional to 444.50 and 721.75 is: 1,171.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    444.50 : 721.75 = 721.75 : x
  2. Step 2: Convert to fraction form
    444.50/721.75 = 721.75/x
  3. Step 3: Cross multiply
    444.50x = 721.75 × 721.75
  4. Step 4: Simplify right side
    444.50x = 520,923.06
  5. Step 5: Solve for x
    x = 520,923.06/444.50
  6. Step 6: Final answer
    x = 1,171.93

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Why These Related Problems?

These problems maintain the same ratio (1.62) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.