Home / 1,305,786.62-1,958,694.29-394,978.35

Finding the Fourth Proportional to 1,305,786.62, 1,958,694.29 and 394,978.35

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Solution

The fourth proportional to 1,305,786.62, 1,958,694.29 and 394,978.35 is: 592,471.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,305,786.62 : 1,958,694.29 = 394,978.35 : x
  2. Step 2: Convert to fraction form
    1,305,786.62/1,958,694.29 = 394,978.35/x
  3. Step 3: Cross multiply
    1,305,786.62x = 1,958,694.29 × 394,978.35
  4. Step 4: Simplify right side
    1,305,786.62x = 773,641,839,050.30
  5. Step 5: Solve for x
    x = 773,641,839,050.30/1,305,786.62
  6. Step 6: Final answer
    x = 592,471.87

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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.