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Finding the Fourth Proportional to 404,392.30, 558,057.52 and 223,105.69

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Solution

The fourth proportional to 404,392.30, 558,057.52 and 223,105.69 is: 307,883.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,392.30 : 558,057.52 = 223,105.69 : x
  2. Step 2: Convert to fraction form
    404,392.30/558,057.52 = 223,105.69/x
  3. Step 3: Cross multiply
    404,392.30x = 558,057.52 × 223,105.69
  4. Step 4: Simplify right side
    404,392.30x = 124,505,808,059.29
  5. Step 5: Solve for x
    x = 124,505,808,059.29/404,392.30
  6. Step 6: Final answer
    x = 307,883.73

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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.