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Finding the Fourth Proportional to 362,436.80, 543,120.60 and 262,806.80

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Solution

The fourth proportional to 362,436.80, 543,120.60 and 262,806.80 is: 393,822.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    362,436.80 : 543,120.60 = 262,806.80 : x
  2. Step 2: Convert to fraction form
    362,436.80/543,120.60 = 262,806.80/x
  3. Step 3: Cross multiply
    362,436.80x = 543,120.60 × 262,806.80
  4. Step 4: Simplify right side
    362,436.80x = 142,735,786,900.08
  5. Step 5: Solve for x
    x = 142,735,786,900.08/362,436.80
  6. Step 6: Final answer
    x = 393,822.56

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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.