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Finding the Fourth Proportional to 362,131.20, 543,391.20 and 151,790.40

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Solution

The fourth proportional to 362,131.20, 543,391.20 and 151,790.40 is: 227,767.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    362,131.20 : 543,391.20 = 151,790.40 : x
  2. Step 2: Convert to fraction form
    362,131.20/543,391.20 = 151,790.40/x
  3. Step 3: Cross multiply
    362,131.20x = 543,391.20 × 151,790.40
  4. Step 4: Simplify right side
    362,131.20x = 82,481,567,604.48
  5. Step 5: Solve for x
    x = 82,481,567,604.48/362,131.20
  6. Step 6: Final answer
    x = 227,767.08

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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.