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Finding the Fourth Proportional to 445,563.96, 668,520.90 and 196,071

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Solution

The fourth proportional to 445,563.96, 668,520.90 and 196,071 is: 294,183.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    445,563.96 : 668,520.90 = 196,071 : x
  2. Step 2: Convert to fraction form
    445,563.96/668,520.90 = 196,071/x
  3. Step 3: Cross multiply
    445,563.96x = 668,520.90 × 196,071
  4. Step 4: Simplify right side
    445,563.96x = 131,077,561,383.90
  5. Step 5: Solve for x
    x = 131,077,561,383.90/445,563.96
  6. Step 6: Final answer
    x = 294,183.49

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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.