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Finding the Third Proportional to 619,845 and 877,374

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Solution

The third proportional to 619,845 and 877,374 is: 1,241,899.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    619,845 : 877,374 = 877,374 : x
  2. Step 2: Convert to fraction form
    619,845/877,374 = 877,374/x
  3. Step 3: Cross multiply
    619,845x = 877,374 × 877,374
  4. Step 4: Simplify right side
    619,845x = 769,785,135,876
  5. Step 5: Solve for x
    x = 769,785,135,876/619,845
  6. Step 6: Final answer
    x = 1,241,899.40

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Why These Related Problems?

These problems maintain the same ratio (1.42) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.