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Finding the Third Proportional to 422,377 and 919,114

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Solution

The third proportional to 422,377 and 919,114 is: 2,000,039.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    422,377 : 919,114 = 919,114 : x
  2. Step 2: Convert to fraction form
    422,377/919,114 = 919,114/x
  3. Step 3: Cross multiply
    422,377x = 919,114 × 919,114
  4. Step 4: Simplify right side
    422,377x = 844,770,544,996
  5. Step 5: Solve for x
    x = 844,770,544,996/422,377
  6. Step 6: Final answer
    x = 2,000,039.17

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.