Home / 327,631.40-491,447.10-127,958.30

Finding the Fourth Proportional to 327,631.40, 491,447.10 and 127,958.30

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Solution

The fourth proportional to 327,631.40, 491,447.10 and 127,958.30 is: 191,937.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    327,631.40 : 491,447.10 = 127,958.30 : x
  2. Step 2: Convert to fraction form
    327,631.40/491,447.10 = 127,958.30/x
  3. Step 3: Cross multiply
    327,631.40x = 491,447.10 × 127,958.30
  4. Step 4: Simplify right side
    327,631.40x = 62,884,735,455.93
  5. Step 5: Solve for x
    x = 62,884,735,455.93/327,631.40
  6. Step 6: Final answer
    x = 191,937.45

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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.