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Finding the Fourth Proportional to 394,830.25, 544,932.77 and 222,796.98

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Solution

The fourth proportional to 394,830.25, 544,932.77 and 222,796.98 is: 307,497.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    394,830.25 : 544,932.77 = 222,796.98 : x
  2. Step 2: Convert to fraction form
    394,830.25/544,932.77 = 222,796.98/x
  3. Step 3: Cross multiply
    394,830.25x = 544,932.77 × 222,796.98
  4. Step 4: Simplify right side
    394,830.25x = 121,409,374,345.05
  5. Step 5: Solve for x
    x = 121,409,374,345.05/394,830.25
  6. Step 6: Final answer
    x = 307,497.65

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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.