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Finding the Fourth Proportional to 404,658.54, 558,425.61 and 223,370.42

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Solution

The fourth proportional to 404,658.54, 558,425.61 and 223,370.42 is: 308,249.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,658.54 : 558,425.61 = 223,370.42 : x
  2. Step 2: Convert to fraction form
    404,658.54/558,425.61 = 223,370.42/x
  3. Step 3: Cross multiply
    404,658.54x = 558,425.61 × 223,370.42
  4. Step 4: Simplify right side
    404,658.54x = 124,735,760,252.33
  5. Step 5: Solve for x
    x = 124,735,760,252.33/404,658.54
  6. Step 6: Final answer
    x = 308,249.42

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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.