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Finding the Third Proportional to 890,293 and 1,972,718

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Solution

The third proportional to 890,293 and 1,972,718 is: 4,371,163.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    890,293 : 1,972,718 = 1,972,718 : x
  2. Step 2: Convert to fraction form
    890,293/1,972,718 = 1,972,718/x
  3. Step 3: Cross multiply
    890,293x = 1,972,718 × 1,972,718
  4. Step 4: Simplify right side
    890,293x = 3,891,616,307,524
  5. Step 5: Solve for x
    x = 3,891,616,307,524/890,293
  6. Step 6: Final answer
    x = 4,371,163.55

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Why These Related Problems?

These problems maintain the same ratio (2.22) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.