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Finding the Fourth Proportional to 325,471.92, 488,285.84 and 135,826.80

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Solution

The fourth proportional to 325,471.92, 488,285.84 and 135,826.80 is: 203,772.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    325,471.92 : 488,285.84 = 135,826.80 : x
  2. Step 2: Convert to fraction form
    325,471.92/488,285.84 = 135,826.80/x
  3. Step 3: Cross multiply
    325,471.92x = 488,285.84 × 135,826.80
  4. Step 4: Simplify right side
    325,471.92x = 66,322,303,132.51
  5. Step 5: Solve for x
    x = 66,322,303,132.51/325,471.92
  6. Step 6: Final answer
    x = 203,772.73

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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.