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Finding the Fourth Proportional to 327,069.20, 490,636.20 and 113,804.30

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Solution

The fourth proportional to 327,069.20, 490,636.20 and 113,804.30 is: 170,717.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    327,069.20 : 490,636.20 = 113,804.30 : x
  2. Step 2: Convert to fraction form
    327,069.20/490,636.20 = 113,804.30/x
  3. Step 3: Cross multiply
    327,069.20x = 490,636.20 × 113,804.30
  4. Step 4: Simplify right side
    327,069.20x = 55,836,509,295.66
  5. Step 5: Solve for x
    x = 55,836,509,295.66/327,069.20
  6. Step 6: Final answer
    x = 170,717.72

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1.5x scale

Why These Related Problems?

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