Home / 431,976.16-647,890.39-116,359.26

Finding the Fourth Proportional to 431,976.16, 647,890.39 and 116,359.26

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Solution

The fourth proportional to 431,976.16, 647,890.39 and 116,359.26 is: 174,519.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    431,976.16 : 647,890.39 = 116,359.26 : x
  2. Step 2: Convert to fraction form
    431,976.16/647,890.39 = 116,359.26/x
  3. Step 3: Cross multiply
    431,976.16x = 647,890.39 × 116,359.26
  4. Step 4: Simplify right side
    431,976.16x = 75,388,046,341.51
  5. Step 5: Solve for x
    x = 75,388,046,341.51/431,976.16
  6. Step 6: Final answer
    x = 174,519.00

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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.