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Finding the Fourth Proportional to 394,606.28, 544,584.46 and 222,539.64

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Solution

The fourth proportional to 394,606.28, 544,584.46 and 222,539.64 is: 307,120.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    394,606.28 : 544,584.46 = 222,539.64 : x
  2. Step 2: Convert to fraction form
    394,606.28/544,584.46 = 222,539.64/x
  3. Step 3: Cross multiply
    394,606.28x = 544,584.46 × 222,539.64
  4. Step 4: Simplify right side
    394,606.28x = 121,191,629,677.99
  5. Step 5: Solve for x
    x = 121,191,629,677.99/394,606.28
  6. Step 6: Final answer
    x = 307,120.38

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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.