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Finding the Fourth Proportional to 404,651.09, 558,418.42 and 223,362.97

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Solution

The fourth proportional to 404,651.09, 558,418.42 and 223,362.97 is: 308,240.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,651.09 : 558,418.42 = 223,362.97 : x
  2. Step 2: Convert to fraction form
    404,651.09/558,418.42 = 223,362.97/x
  3. Step 3: Cross multiply
    404,651.09x = 558,418.42 × 223,362.97
  4. Step 4: Simplify right side
    404,651.09x = 124,729,996,793.91
  5. Step 5: Solve for x
    x = 124,729,996,793.91/404,651.09
  6. Step 6: Final answer
    x = 308,240.85

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.