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Finding the Fourth Proportional to 265,027.20, 397,540.80 and 98,793.60

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Solution

The fourth proportional to 265,027.20, 397,540.80 and 98,793.60 is: 148,190.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    265,027.20 : 397,540.80 = 98,793.60 : x
  2. Step 2: Convert to fraction form
    265,027.20/397,540.80 = 98,793.60/x
  3. Step 3: Cross multiply
    265,027.20x = 397,540.80 × 98,793.60
  4. Step 4: Simplify right side
    265,027.20x = 39,274,486,778.88
  5. Step 5: Solve for x
    x = 39,274,486,778.88/265,027.20
  6. Step 6: Final answer
    x = 148,190.40

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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.