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Finding the Fourth Proportional to 404,610.91, 558,363.05 and 225,762.91

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Solution

The fourth proportional to 404,610.91, 558,363.05 and 225,762.91 is: 311,552.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,610.91 : 558,363.05 = 225,762.91 : x
  2. Step 2: Convert to fraction form
    404,610.91/558,363.05 = 225,762.91/x
  3. Step 3: Cross multiply
    404,610.91x = 558,363.05 × 225,762.91
  4. Step 4: Simplify right side
    404,610.91x = 126,057,667,004.48
  5. Step 5: Solve for x
    x = 126,057,667,004.48/404,610.91
  6. Step 6: Final answer
    x = 311,552.81

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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.