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Finding the Third Proportional to 999,499 and 2,158,587

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Solution

The third proportional to 999,499 and 2,158,587 is: 4,661,833.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    999,499 : 2,158,587 = 2,158,587 : x
  2. Step 2: Convert to fraction form
    999,499/2,158,587 = 2,158,587/x
  3. Step 3: Cross multiply
    999,499x = 2,158,587 × 2,158,587
  4. Step 4: Simplify right side
    999,499x = 4,659,497,836,569
  5. Step 5: Solve for x
    x = 4,659,497,836,569/999,499
  6. Step 6: Final answer
    x = 4,661,833.42

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.