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Finding the Third Proportional to 426.38 and 652.22

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Solution

The third proportional to 426.38 and 652.22 is: 997.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    426.38 : 652.22 = 652.22 : x
  2. Step 2: Convert to fraction form
    426.38/652.22 = 652.22/x
  3. Step 3: Cross multiply
    426.38x = 652.22 × 652.22
  4. Step 4: Simplify right side
    426.38x = 425,389.30
  5. Step 5: Solve for x
    x = 425,389.30/426.38
  6. Step 6: Final answer
    x = 997.69

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Why These Related Problems?

These problems maintain the same ratio (1.53) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.