Home / 327,843.36-491,765.64-91,186.20

Finding the Fourth Proportional to 327,843.36, 491,765.64 and 91,186.20

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Solution

The fourth proportional to 327,843.36, 491,765.64 and 91,186.20 is: 136,779.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    327,843.36 : 491,765.64 = 91,186.20 : x
  2. Step 2: Convert to fraction form
    327,843.36/491,765.64 = 91,186.20/x
  3. Step 3: Cross multiply
    327,843.36x = 491,765.64 × 91,186.20
  4. Step 4: Simplify right side
    327,843.36x = 44,842,240,002.17
  5. Step 5: Solve for x
    x = 44,842,240,002.17/327,843.36
  6. Step 6: Final answer
    x = 136,779.47

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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.