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Finding the Fourth Proportional to 543,914.80, 816,163.80 and 228,403.60

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Solution

The fourth proportional to 543,914.80, 816,163.80 and 228,403.60 is: 342,727.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    543,914.80 : 816,163.80 = 228,403.60 : x
  2. Step 2: Convert to fraction form
    543,914.80/816,163.80 = 228,403.60/x
  3. Step 3: Cross multiply
    543,914.80x = 816,163.80 × 228,403.60
  4. Step 4: Simplify right side
    543,914.80x = 186,414,750,109.68
  5. Step 5: Solve for x
    x = 186,414,750,109.68/543,914.80
  6. Step 6: Final answer
    x = 342,727.85

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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.