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Finding the Third Proportional to 322.50 and 484.46

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Solution

The third proportional to 322.50 and 484.46 is: 727.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    322.50 : 484.46 = 484.46 : x
  2. Step 2: Convert to fraction form
    322.50/484.46 = 484.46/x
  3. Step 3: Cross multiply
    322.50x = 484.46 × 484.46
  4. Step 4: Simplify right side
    322.50x = 234,699.09
  5. Step 5: Solve for x
    x = 234,699.09/322.50
  6. Step 6: Final answer
    x = 727.76

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.