Home / 694,161.60-1,040,464.80-394,785.60

Finding the Fourth Proportional to 694,161.60, 1,040,464.80 and 394,785.60

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Solution

The fourth proportional to 694,161.60, 1,040,464.80 and 394,785.60 is: 591,736.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    694,161.60 : 1,040,464.80 = 394,785.60 : x
  2. Step 2: Convert to fraction form
    694,161.60/1,040,464.80 = 394,785.60/x
  3. Step 3: Cross multiply
    694,161.60x = 1,040,464.80 × 394,785.60
  4. Step 4: Simplify right side
    694,161.60x = 410,760,520,346.88
  5. Step 5: Solve for x
    x = 410,760,520,346.88/694,161.60
  6. Step 6: Final answer
    x = 591,736.16

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.