Home / 327,674.40-491,511.60-128,001.30

Finding the Fourth Proportional to 327,674.40, 491,511.60 and 128,001.30

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Solution

The fourth proportional to 327,674.40, 491,511.60 and 128,001.30 is: 192,001.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    327,674.40 : 491,511.60 = 128,001.30 : x
  2. Step 2: Convert to fraction form
    327,674.40/491,511.60 = 128,001.30/x
  3. Step 3: Cross multiply
    327,674.40x = 491,511.60 × 128,001.30
  4. Step 4: Simplify right side
    327,674.40x = 62,914,123,765.08
  5. Step 5: Solve for x
    x = 62,914,123,765.08/327,674.40
  6. Step 6: Final answer
    x = 192,001.95

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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.