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Finding the Third Proportional to 394,226 and 864,753

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Solution

The third proportional to 394,226 and 864,753 is: 1,896,875.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    394,226 : 864,753 = 864,753 : x
  2. Step 2: Convert to fraction form
    394,226/864,753 = 864,753/x
  3. Step 3: Cross multiply
    394,226x = 864,753 × 864,753
  4. Step 4: Simplify right side
    394,226x = 747,797,751,009
  5. Step 5: Solve for x
    x = 747,797,751,009/394,226
  6. Step 6: Final answer
    x = 1,896,875.78

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.