Home / 325,449.21-449,147.66-189,525.77

Finding the Fourth Proportional to 325,449.21, 449,147.66 and 189,525.77

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Solution

The fourth proportional to 325,449.21, 449,147.66 and 189,525.77 is: 261,561.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    325,449.21 : 449,147.66 = 189,525.77 : x
  2. Step 2: Convert to fraction form
    325,449.21/449,147.66 = 189,525.77/x
  3. Step 3: Cross multiply
    325,449.21x = 449,147.66 × 189,525.77
  4. Step 4: Simplify right side
    325,449.21x = 85,125,056,105.20
  5. Step 5: Solve for x
    x = 85,125,056,105.20/325,449.21
  6. Step 6: Final answer
    x = 261,561.72

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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.