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Finding the Fourth Proportional to 311,883.21, 465,568.86 and 274,049.02

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Solution

The fourth proportional to 311,883.21, 465,568.86 and 274,049.02 is: 409,091.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    311,883.21 : 465,568.86 = 274,049.02 : x
  2. Step 2: Convert to fraction form
    311,883.21/465,568.86 = 274,049.02/x
  3. Step 3: Cross multiply
    311,883.21x = 465,568.86 × 274,049.02
  4. Step 4: Simplify right side
    311,883.21x = 127,588,691,435.16
  5. Step 5: Solve for x
    x = 127,588,691,435.16/311,883.21
  6. Step 6: Final answer
    x = 409,091.25

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.