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Finding the Third Proportional to 857,930 and 1,829,857

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Solution

The third proportional to 857,930 and 1,829,857 is: 3,902,855.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    857,930 : 1,829,857 = 1,829,857 : x
  2. Step 2: Convert to fraction form
    857,930/1,829,857 = 1,829,857/x
  3. Step 3: Cross multiply
    857,930x = 1,829,857 × 1,829,857
  4. Step 4: Simplify right side
    857,930x = 3,348,376,640,449
  5. Step 5: Solve for x
    x = 3,348,376,640,449/857,930
  6. Step 6: Final answer
    x = 3,902,855.29

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Why These Related Problems?

These problems maintain the same ratio (2.13) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.