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Finding the Fourth Proportional to 362,573.20, 543,859.80 and 220,855.60

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Solution

The fourth proportional to 362,573.20, 543,859.80 and 220,855.60 is: 331,283.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    362,573.20 : 543,859.80 = 220,855.60 : x
  2. Step 2: Convert to fraction form
    362,573.20/543,859.80 = 220,855.60/x
  3. Step 3: Cross multiply
    362,573.20x = 543,859.80 × 220,855.60
  4. Step 4: Simplify right side
    362,573.20x = 120,114,482,444.88
  5. Step 5: Solve for x
    x = 120,114,482,444.88/362,573.20
  6. Step 6: Final answer
    x = 331,283.40

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Similar ratio
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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.