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Finding the Fourth Proportional to 361,913.54, 543,147.44 and 260,662.95

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Solution

The fourth proportional to 361,913.54, 543,147.44 and 260,662.95 is: 391,194.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    361,913.54 : 543,147.44 = 260,662.95 : x
  2. Step 2: Convert to fraction form
    361,913.54/543,147.44 = 260,662.95/x
  3. Step 3: Cross multiply
    361,913.54x = 543,147.44 × 260,662.95
  4. Step 4: Simplify right side
    361,913.54x = 141,578,412,692.03
  5. Step 5: Solve for x
    x = 141,578,412,692.03/361,913.54
  6. Step 6: Final answer
    x = 391,194.03

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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.