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Finding the Fourth Proportional to 394,781.94, 544,804.58 and 222,707.87

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Solution

The fourth proportional to 394,781.94, 544,804.58 and 222,707.87 is: 307,339.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    394,781.94 : 544,804.58 = 222,707.87 : x
  2. Step 2: Convert to fraction form
    394,781.94/544,804.58 = 222,707.87/x
  3. Step 3: Cross multiply
    394,781.94x = 544,804.58 × 222,707.87
  4. Step 4: Simplify right side
    394,781.94x = 121,332,269,496.83
  5. Step 5: Solve for x
    x = 121,332,269,496.83/394,781.94
  6. Step 6: Final answer
    x = 307,339.97

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1.5x scale

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.