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Finding the Third Proportional to 857,137 and 1,809,698

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Solution

The third proportional to 857,137 and 1,809,698 is: 3,820,867.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    857,137 : 1,809,698 = 1,809,698 : x
  2. Step 2: Convert to fraction form
    857,137/1,809,698 = 1,809,698/x
  3. Step 3: Cross multiply
    857,137x = 1,809,698 × 1,809,698
  4. Step 4: Simplify right side
    857,137x = 3,275,006,851,204
  5. Step 5: Solve for x
    x = 3,275,006,851,204/857,137
  6. Step 6: Final answer
    x = 3,820,867.44

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Why These Related Problems?

These problems maintain the same ratio (2.11) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.