Home / 416,365.20-574,585.92-225,378.72

Finding the Fourth Proportional to 416,365.20, 574,585.92 and 225,378.72

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Solution

The fourth proportional to 416,365.20, 574,585.92 and 225,378.72 is: 311,023.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    416,365.20 : 574,585.92 = 225,378.72 : x
  2. Step 2: Convert to fraction form
    416,365.20/574,585.92 = 225,378.72/x
  3. Step 3: Cross multiply
    416,365.20x = 574,585.92 × 225,378.72
  4. Step 4: Simplify right side
    416,365.20x = 129,499,439,179.62
  5. Step 5: Solve for x
    x = 129,499,439,179.62/416,365.20
  6. Step 6: Final answer
    x = 311,023.69

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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.