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Finding the Fourth Proportional to 394,194.98, 543,957.44 and 222,105.62

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Solution

The fourth proportional to 394,194.98, 543,957.44 and 222,105.62 is: 306,487.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    394,194.98 : 543,957.44 = 222,105.62 : x
  2. Step 2: Convert to fraction form
    394,194.98/543,957.44 = 222,105.62/x
  3. Step 3: Cross multiply
    394,194.98x = 543,957.44 × 222,105.62
  4. Step 4: Simplify right side
    394,194.98x = 120,816,004,464.81
  5. Step 5: Solve for x
    x = 120,816,004,464.81/394,194.98
  6. Step 6: Final answer
    x = 306,487.93

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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.