Home / 2,647,219.20-3,970,828.80-1,906,252.80

Finding the Fourth Proportional to 2,647,219.20, 3,970,828.80 and 1,906,252.80

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Solution

The fourth proportional to 2,647,219.20, 3,970,828.80 and 1,906,252.80 is: 2,859,379.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,647,219.20 : 3,970,828.80 = 1,906,252.80 : x
  2. Step 2: Convert to fraction form
    2,647,219.20/3,970,828.80 = 1,906,252.80/x
  3. Step 3: Cross multiply
    2,647,219.20x = 3,970,828.80 × 1,906,252.80
  4. Step 4: Simplify right side
    2,647,219.20x = 7,569,403,518,320.64
  5. Step 5: Solve for x
    x = 7,569,403,518,320.64/2,647,219.20
  6. Step 6: Final answer
    x = 2,859,379.20

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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.