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Finding the Fourth Proportional to 325,466.20, 488,112.90 and 100,826.20

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Solution

The fourth proportional to 325,466.20, 488,112.90 and 100,826.20 is: 151,212.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    325,466.20 : 488,112.90 = 100,826.20 : x
  2. Step 2: Convert to fraction form
    325,466.20/488,112.90 = 100,826.20/x
  3. Step 3: Cross multiply
    325,466.20x = 488,112.90 × 100,826.20
  4. Step 4: Simplify right side
    325,466.20x = 49,214,568,877.98
  5. Step 5: Solve for x
    x = 49,214,568,877.98/325,466.20
  6. Step 6: Final answer
    x = 151,212.53

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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.