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Finding the Third Proportional to 444 and 721.50

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Solution

The third proportional to 444 and 721.50 is: 1,172.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    444 : 721.50 = 721.50 : x
  2. Step 2: Convert to fraction form
    444/721.50 = 721.50/x
  3. Step 3: Cross multiply
    444x = 721.50 × 721.50
  4. Step 4: Simplify right side
    444x = 520,562.25
  5. Step 5: Solve for x
    x = 520,562.25/444
  6. Step 6: Final answer
    x = 1,172.44

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Why These Related Problems?

These problems maintain the same ratio (1.63) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.