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Finding the Third Proportional to 811,863 and 1,285,479

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Solution

The third proportional to 811,863 and 1,285,479 is: 2,035,388.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    811,863 : 1,285,479 = 1,285,479 : x
  2. Step 2: Convert to fraction form
    811,863/1,285,479 = 1,285,479/x
  3. Step 3: Cross multiply
    811,863x = 1,285,479 × 1,285,479
  4. Step 4: Simplify right side
    811,863x = 1,652,456,259,441
  5. Step 5: Solve for x
    x = 1,652,456,259,441/811,863
  6. Step 6: Final answer
    x = 2,035,388.06

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Why These Related Problems?

These problems maintain the same ratio (1.58) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.