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Finding the Third Proportional to 638,766 and 888,165

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Solution

The third proportional to 638,766 and 888,165 is: 1,234,939.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    638,766 : 888,165 = 888,165 : x
  2. Step 2: Convert to fraction form
    638,766/888,165 = 888,165/x
  3. Step 3: Cross multiply
    638,766x = 888,165 × 888,165
  4. Step 4: Simplify right side
    638,766x = 788,837,067,225
  5. Step 5: Solve for x
    x = 788,837,067,225/638,766
  6. Step 6: Final answer
    x = 1,234,939.03

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Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.