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Finding the Fourth Proportional to 389,908.80, 584,775.72 and 179,344.44

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Solution

The fourth proportional to 389,908.80, 584,775.72 and 179,344.44 is: 268,976.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,908.80 : 584,775.72 = 179,344.44 : x
  2. Step 2: Convert to fraction form
    389,908.80/584,775.72 = 179,344.44/x
  3. Step 3: Cross multiply
    389,908.80x = 584,775.72 × 179,344.44
  4. Step 4: Simplify right side
    389,908.80x = 104,876,274,029.00
  5. Step 5: Solve for x
    x = 104,876,274,029.00/389,908.80
  6. Step 6: Final answer
    x = 268,976.42

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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.