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Finding the Third Proportional to 681,511.50 and 1,058,287.50

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Solution

The third proportional to 681,511.50 and 1,058,287.50 is: 1,643,365.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    681,511.50 : 1,058,287.50 = 1,058,287.50 : x
  2. Step 2: Convert to fraction form
    681,511.50/1,058,287.50 = 1,058,287.50/x
  3. Step 3: Cross multiply
    681,511.50x = 1,058,287.50 × 1,058,287.50
  4. Step 4: Simplify right side
    681,511.50x = 1,119,972,432,656.25
  5. Step 5: Solve for x
    x = 1,119,972,432,656.25/681,511.50
  6. Step 6: Final answer
    x = 1,643,365.42

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.