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Finding the Fourth Proportional to 403,351.72, 556,604.24 and 222,028.22

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Solution

The fourth proportional to 403,351.72, 556,604.24 and 222,028.22 is: 306,387.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,351.72 : 556,604.24 = 222,028.22 : x
  2. Step 2: Convert to fraction form
    403,351.72/556,604.24 = 222,028.22/x
  3. Step 3: Cross multiply
    403,351.72x = 556,604.24 × 222,028.22
  4. Step 4: Simplify right side
    403,351.72x = 123,581,848,933.02
  5. Step 5: Solve for x
    x = 123,581,848,933.02/403,351.72
  6. Step 6: Final answer
    x = 306,387.31

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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.