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Finding the Fourth Proportional to 404,984.86, 558,876.44 and 223,708.48

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Solution

The fourth proportional to 404,984.86, 558,876.44 and 223,708.48 is: 308,716.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,984.86 : 558,876.44 = 223,708.48 : x
  2. Step 2: Convert to fraction form
    404,984.86/558,876.44 = 223,708.48/x
  3. Step 3: Cross multiply
    404,984.86x = 558,876.44 × 223,708.48
  4. Step 4: Simplify right side
    404,984.86x = 125,025,398,900.21
  5. Step 5: Solve for x
    x = 125,025,398,900.21/404,984.86
  6. Step 6: Final answer
    x = 308,716.23

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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.