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Finding the Fourth Proportional to 404,058.87, 557,600.49 and 222,769.53

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Solution

The fourth proportional to 404,058.87, 557,600.49 and 222,769.53 is: 307,421.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,058.87 : 557,600.49 = 222,769.53 : x
  2. Step 2: Convert to fraction form
    404,058.87/557,600.49 = 222,769.53/x
  3. Step 3: Cross multiply
    404,058.87x = 557,600.49 × 222,769.53
  4. Step 4: Simplify right side
    404,058.87x = 124,216,399,085.07
  5. Step 5: Solve for x
    x = 124,216,399,085.07/404,058.87
  6. Step 6: Final answer
    x = 307,421.54

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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.