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Finding the Fourth Proportional to 327,979.53, 492,112.25 and 114,900.30

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Solution

The fourth proportional to 327,979.53, 492,112.25 and 114,900.30 is: 172,400.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    327,979.53 : 492,112.25 = 114,900.30 : x
  2. Step 2: Convert to fraction form
    327,979.53/492,112.25 = 114,900.30/x
  3. Step 3: Cross multiply
    327,979.53x = 492,112.25 × 114,900.30
  4. Step 4: Simplify right side
    327,979.53x = 56,543,844,584.17
  5. Step 5: Solve for x
    x = 56,543,844,584.17/327,979.53
  6. Step 6: Final answer
    x = 172,400.53

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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.