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Finding the Third Proportional to 516.38 and 692.44

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Solution

The third proportional to 516.38 and 692.44 is: 928.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    516.38 : 692.44 = 692.44 : x
  2. Step 2: Convert to fraction form
    516.38/692.44 = 692.44/x
  3. Step 3: Cross multiply
    516.38x = 692.44 × 692.44
  4. Step 4: Simplify right side
    516.38x = 479,469.69
  5. Step 5: Solve for x
    x = 479,469.69/516.38
  6. Step 6: Final answer
    x = 928.53

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Why These Related Problems?

These problems maintain the same ratio (1.34) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.