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Finding the Fourth Proportional to 681,997.16, 940,991.49 and 440,227.95

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Solution

The fourth proportional to 681,997.16, 940,991.49 and 440,227.95 is: 607,408.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    681,997.16 : 940,991.49 = 440,227.95 : x
  2. Step 2: Convert to fraction form
    681,997.16/940,991.49 = 440,227.95/x
  3. Step 3: Cross multiply
    681,997.16x = 940,991.49 × 440,227.95
  4. Step 4: Simplify right side
    681,997.16x = 414,250,754,610.15
  5. Step 5: Solve for x
    x = 414,250,754,610.15/681,997.16
  6. Step 6: Final answer
    x = 607,408.33

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.