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Finding the Fourth Proportional to 325,900.40, 488,850.60 and 220,146.80

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Solution

The fourth proportional to 325,900.40, 488,850.60 and 220,146.80 is: 330,220.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    325,900.40 : 488,850.60 = 220,146.80 : x
  2. Step 2: Convert to fraction form
    325,900.40/488,850.60 = 220,146.80/x
  3. Step 3: Cross multiply
    325,900.40x = 488,850.60 × 220,146.80
  4. Step 4: Simplify right side
    325,900.40x = 107,618,895,268.08
  5. Step 5: Solve for x
    x = 107,618,895,268.08/325,900.40
  6. Step 6: Final answer
    x = 330,220.20

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.