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Finding the Fourth Proportional to 362,490.80, 543,201.60 and 262,860.80

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Solution

The fourth proportional to 362,490.80, 543,201.60 and 262,860.80 is: 393,903.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    362,490.80 : 543,201.60 = 262,860.80 : x
  2. Step 2: Convert to fraction form
    362,490.80/543,201.60 = 262,860.80/x
  3. Step 3: Cross multiply
    362,490.80x = 543,201.60 × 262,860.80
  4. Step 4: Simplify right side
    362,490.80x = 142,786,407,137.28
  5. Step 5: Solve for x
    x = 142,786,407,137.28/362,490.80
  6. Step 6: Final answer
    x = 393,903.53

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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.