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Finding the Fourth Proportional to 404,439.88, 558,130.02 and 223,158.54

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Solution

The fourth proportional to 404,439.88, 558,130.02 and 223,158.54 is: 307,960.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,439.88 : 558,130.02 = 223,158.54 : x
  2. Step 2: Convert to fraction form
    404,439.88/558,130.02 = 223,158.54/x
  3. Step 3: Cross multiply
    404,439.88x = 558,130.02 × 223,158.54
  4. Step 4: Simplify right side
    404,439.88x = 124,551,480,393.37
  5. Step 5: Solve for x
    x = 124,551,480,393.37/404,439.88
  6. Step 6: Final answer
    x = 307,960.43

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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.