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Finding the Fourth Proportional to 362,378.93, 543,382.44 and 191,692.77

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Solution

The fourth proportional to 362,378.93, 543,382.44 and 191,692.77 is: 287,440.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    362,378.93 : 543,382.44 = 191,692.77 : x
  2. Step 2: Convert to fraction form
    362,378.93/543,382.44 = 191,692.77/x
  3. Step 3: Cross multiply
    362,378.93x = 543,382.44 × 191,692.77
  4. Step 4: Simplify right side
    362,378.93x = 104,162,485,092.96
  5. Step 5: Solve for x
    x = 104,162,485,092.96/362,378.93
  6. Step 6: Final answer
    x = 287,440.79

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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.