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Finding the Fourth Proportional to 404,721.32, 606,976.22 and 120,335.29

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Solution

The fourth proportional to 404,721.32, 606,976.22 and 120,335.29 is: 180,471.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,721.32 : 606,976.22 = 120,335.29 : x
  2. Step 2: Convert to fraction form
    404,721.32/606,976.22 = 120,335.29/x
  3. Step 3: Cross multiply
    404,721.32x = 606,976.22 × 120,335.29
  4. Step 4: Simplify right side
    404,721.32x = 73,040,659,351.32
  5. Step 5: Solve for x
    x = 73,040,659,351.32/404,721.32
  6. Step 6: Final answer
    x = 180,471.49

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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.