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Finding the Fourth Proportional to 362,427.20, 543,640.80 and 329,184.80

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Solution

The fourth proportional to 362,427.20, 543,640.80 and 329,184.80 is: 493,777.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    362,427.20 : 543,640.80 = 329,184.80 : x
  2. Step 2: Convert to fraction form
    362,427.20/543,640.80 = 329,184.80/x
  3. Step 3: Cross multiply
    362,427.20x = 543,640.80 × 329,184.80
  4. Step 4: Simplify right side
    362,427.20x = 178,958,288,019.84
  5. Step 5: Solve for x
    x = 178,958,288,019.84/362,427.20
  6. Step 6: Final answer
    x = 493,777.20

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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.