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Finding the Third Proportional to 406,805 and 874,832

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Solution

The third proportional to 406,805 and 874,832 is: 1,881,321.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    406,805 : 874,832 = 874,832 : x
  2. Step 2: Convert to fraction form
    406,805/874,832 = 874,832/x
  3. Step 3: Cross multiply
    406,805x = 874,832 × 874,832
  4. Step 4: Simplify right side
    406,805x = 765,331,028,224
  5. Step 5: Solve for x
    x = 765,331,028,224/406,805
  6. Step 6: Final answer
    x = 1,881,321.59

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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.