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Finding the Fourth Proportional to 681,847.36, 940,991.52 and 375,922.24

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Solution

The fourth proportional to 681,847.36, 940,991.52 and 375,922.24 is: 518,795.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    681,847.36 : 940,991.52 = 375,922.24 : x
  2. Step 2: Convert to fraction form
    681,847.36/940,991.52 = 375,922.24/x
  3. Step 3: Cross multiply
    681,847.36x = 940,991.52 × 375,922.24
  4. Step 4: Simplify right side
    681,847.36x = 353,739,640,019.41
  5. Step 5: Solve for x
    x = 353,739,640,019.41/681,847.36
  6. Step 6: Final answer
    x = 518,795.94

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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.