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Finding the Third Proportional to 394 and 826.25

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Solution

The third proportional to 394 and 826.25 is: 1,732.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    394 : 826.25 = 826.25 : x
  2. Step 2: Convert to fraction form
    394/826.25 = 826.25/x
  3. Step 3: Cross multiply
    394x = 826.25 × 826.25
  4. Step 4: Simplify right side
    394x = 682,689.06
  5. Step 5: Solve for x
    x = 682,689.06/394
  6. Step 6: Final answer
    x = 1,732.71

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These problems maintain the same ratio (2.10) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.