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Finding the Fourth Proportional to 404,715.92, 558,508.91 and 223,427.97

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Solution

The fourth proportional to 404,715.92, 558,508.91 and 223,427.97 is: 308,331.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,715.92 : 558,508.91 = 223,427.97 : x
  2. Step 2: Convert to fraction form
    404,715.92/558,508.91 = 223,427.97/x
  3. Step 3: Cross multiply
    404,715.92x = 558,508.91 × 223,427.97
  4. Step 4: Simplify right side
    404,715.92x = 124,786,511,988.21
  5. Step 5: Solve for x
    x = 124,786,511,988.21/404,715.92
  6. Step 6: Final answer
    x = 308,331.12

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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.