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Finding the Fourth Proportional to 404,679.14, 558,454.04 and 223,391.01

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Solution

The fourth proportional to 404,679.14, 558,454.04 and 223,391.01 is: 308,277.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,679.14 : 558,454.04 = 223,391.01 : x
  2. Step 2: Convert to fraction form
    404,679.14/558,454.04 = 223,391.01/x
  3. Step 3: Cross multiply
    404,679.14x = 558,454.04 × 223,391.01
  4. Step 4: Simplify right side
    404,679.14x = 124,753,615,105.72
  5. Step 5: Solve for x
    x = 124,753,615,105.72/404,679.14
  6. Step 6: Final answer
    x = 308,277.85

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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.