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Finding the Fourth Proportional to 403,352.50, 556,605.30 and 222,029.01

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Solution

The fourth proportional to 403,352.50, 556,605.30 and 222,029.01 is: 306,388.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,352.50 : 556,605.30 = 222,029.01 : x
  2. Step 2: Convert to fraction form
    403,352.50/556,605.30 = 222,029.01/x
  3. Step 3: Cross multiply
    403,352.50x = 556,605.30 × 222,029.01
  4. Step 4: Simplify right side
    403,352.50x = 123,582,523,719.75
  5. Step 5: Solve for x
    x = 123,582,523,719.75/403,352.50
  6. Step 6: Final answer
    x = 306,388.39

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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.