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Finding the Fourth Proportional to 404,694.35, 558,474.78 and 223,402.39

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Solution

The fourth proportional to 404,694.35, 558,474.78 and 223,402.39 is: 308,293.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,694.35 : 558,474.78 = 223,402.39 : x
  2. Step 2: Convert to fraction form
    404,694.35/558,474.78 = 223,402.39/x
  3. Step 3: Cross multiply
    404,694.35x = 558,474.78 × 223,402.39
  4. Step 4: Simplify right side
    404,694.35x = 124,764,601,165.23
  5. Step 5: Solve for x
    x = 124,764,601,165.23/404,694.35
  6. Step 6: Final answer
    x = 308,293.41

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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.