Home / 397,120.18-548,105.56-235,944.20

Finding the Fourth Proportional to 397,120.18, 548,105.56 and 235,944.20

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Solution

The fourth proportional to 397,120.18, 548,105.56 and 235,944.20 is: 325,650.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    397,120.18 : 548,105.56 = 235,944.20 : x
  2. Step 2: Convert to fraction form
    397,120.18/548,105.56 = 235,944.20/x
  3. Step 3: Cross multiply
    397,120.18x = 548,105.56 × 235,944.20
  4. Step 4: Simplify right side
    397,120.18x = 129,322,327,869.75
  5. Step 5: Solve for x
    x = 129,322,327,869.75/397,120.18
  6. Step 6: Final answer
    x = 325,650.36

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.