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Finding the Fourth Proportional to 404,726.44, 606,983.94 and 120,340.42

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Solution

The fourth proportional to 404,726.44, 606,983.94 and 120,340.42 is: 180,479.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,726.44 : 606,983.94 = 120,340.42 : x
  2. Step 2: Convert to fraction form
    404,726.44/606,983.94 = 120,340.42/x
  3. Step 3: Cross multiply
    404,726.44x = 606,983.94 × 120,340.42
  4. Step 4: Simplify right side
    404,726.44x = 73,044,702,272.85
  5. Step 5: Solve for x
    x = 73,044,702,272.85/404,726.44
  6. Step 6: Final answer
    x = 180,479.20

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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.