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Finding the Third Proportional to 408,184 and 865,772

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Solution

The third proportional to 408,184 and 865,772 is: 1,836,331.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    408,184 : 865,772 = 865,772 : x
  2. Step 2: Convert to fraction form
    408,184/865,772 = 865,772/x
  3. Step 3: Cross multiply
    408,184x = 865,772 × 865,772
  4. Step 4: Simplify right side
    408,184x = 749,561,155,984
  5. Step 5: Solve for x
    x = 749,561,155,984/408,184
  6. Step 6: Final answer
    x = 1,836,331.55

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Why These Related Problems?

These problems maintain the same ratio (2.12) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.