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Finding the Fourth Proportional to 327,866.94, 491,801.32 and 91,209.85

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Solution

The fourth proportional to 327,866.94, 491,801.32 and 91,209.85 is: 136,815.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    327,866.94 : 491,801.32 = 91,209.85 : x
  2. Step 2: Convert to fraction form
    327,866.94/491,801.32 = 91,209.85/x
  3. Step 3: Cross multiply
    327,866.94x = 491,801.32 × 91,209.85
  4. Step 4: Simplify right side
    327,866.94x = 44,857,123,511.51
  5. Step 5: Solve for x
    x = 44,857,123,511.51/327,866.94
  6. Step 6: Final answer
    x = 136,815.02

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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.