Home / 437,629.20-656,443.80-260,044.80

Finding the Fourth Proportional to 437,629.20, 656,443.80 and 260,044.80

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Solution

The fourth proportional to 437,629.20, 656,443.80 and 260,044.80 is: 390,067.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    437,629.20 : 656,443.80 = 260,044.80 : x
  2. Step 2: Convert to fraction form
    437,629.20/656,443.80 = 260,044.80/x
  3. Step 3: Cross multiply
    437,629.20x = 656,443.80 × 260,044.80
  4. Step 4: Simplify right side
    437,629.20x = 170,704,796,682.24
  5. Step 5: Solve for x
    x = 170,704,796,682.24/437,629.20
  6. Step 6: Final answer
    x = 390,067.20

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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.