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Finding the Third Proportional to 397,617 and 854,562

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Solution

The third proportional to 397,617 and 854,562 is: 1,836,632.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    397,617 : 854,562 = 854,562 : x
  2. Step 2: Convert to fraction form
    397,617/854,562 = 854,562/x
  3. Step 3: Cross multiply
    397,617x = 854,562 × 854,562
  4. Step 4: Simplify right side
    397,617x = 730,276,211,844
  5. Step 5: Solve for x
    x = 730,276,211,844/397,617
  6. Step 6: Final answer
    x = 1,836,632.27

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.