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Finding the Fourth Proportional to 404,188.44, 557,770.80 and 222,895.20

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Solution

The fourth proportional to 404,188.44, 557,770.80 and 222,895.20 is: 307,590.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,188.44 : 557,770.80 = 222,895.20 : x
  2. Step 2: Convert to fraction form
    404,188.44/557,770.80 = 222,895.20/x
  3. Step 3: Cross multiply
    404,188.44x = 557,770.80 × 222,895.20
  4. Step 4: Simplify right side
    404,188.44x = 124,324,434,020.16
  5. Step 5: Solve for x
    x = 124,324,434,020.16/404,188.44
  6. Step 6: Final answer
    x = 307,590.28

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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.