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Finding the Third Proportional to 919,968 and 1,396,557

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Solution

The third proportional to 919,968 and 1,396,557 is: 2,120,042.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    919,968 : 1,396,557 = 1,396,557 : x
  2. Step 2: Convert to fraction form
    919,968/1,396,557 = 1,396,557/x
  3. Step 3: Cross multiply
    919,968x = 1,396,557 × 1,396,557
  4. Step 4: Simplify right side
    919,968x = 1,950,371,454,249
  5. Step 5: Solve for x
    x = 1,950,371,454,249/919,968
  6. Step 6: Final answer
    x = 2,120,042.71

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Why These Related Problems?

These problems maintain the same ratio (1.52) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.