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Finding the Fourth Proportional to 403,352.43, 556,605.22 and 222,028.95

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Solution

The fourth proportional to 403,352.43, 556,605.22 and 222,028.95 is: 306,388.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,352.43 : 556,605.22 = 222,028.95 : x
  2. Step 2: Convert to fraction form
    403,352.43/556,605.22 = 222,028.95/x
  3. Step 3: Cross multiply
    403,352.43x = 556,605.22 × 222,028.95
  4. Step 4: Simplify right side
    403,352.43x = 123,582,471,378.72
  5. Step 5: Solve for x
    x = 123,582,471,378.72/403,352.43
  6. Step 6: Final answer
    x = 306,388.31

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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.