Home / 2,083,651.20-3,120,561.60-1,287,388.80

Finding the Fourth Proportional to 2,083,651.20, 3,120,561.60 and 1,287,388.80

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Solution

The fourth proportional to 2,083,651.20, 3,120,561.60 and 1,287,388.80 is: 1,928,046.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,083,651.20 : 3,120,561.60 = 1,287,388.80 : x
  2. Step 2: Convert to fraction form
    2,083,651.20/3,120,561.60 = 1,287,388.80/x
  3. Step 3: Cross multiply
    2,083,651.20x = 3,120,561.60 × 1,287,388.80
  4. Step 4: Simplify right side
    2,083,651.20x = 4,017,376,053,550.08
  5. Step 5: Solve for x
    x = 4,017,376,053,550.08/2,083,651.20
  6. Step 6: Final answer
    x = 1,928,046.33

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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.