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Finding the Third Proportional to 519.38 and 835.88

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Solution

The third proportional to 519.38 and 835.88 is: 1,345.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    519.38 : 835.88 = 835.88 : x
  2. Step 2: Convert to fraction form
    519.38/835.88 = 835.88/x
  3. Step 3: Cross multiply
    519.38x = 835.88 × 835.88
  4. Step 4: Simplify right side
    519.38x = 698,687.02
  5. Step 5: Solve for x
    x = 698,687.02/519.38
  6. Step 6: Final answer
    x = 1,345.25

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Why These Related Problems?

These problems maintain the same ratio (1.61) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.