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Finding the Fourth Proportional to 492,926.80, 739,387.80 and 193,195.60

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Solution

The fourth proportional to 492,926.80, 739,387.80 and 193,195.60 is: 289,792.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    492,926.80 : 739,387.80 = 193,195.60 : x
  2. Step 2: Convert to fraction form
    492,926.80/739,387.80 = 193,195.60/x
  3. Step 3: Cross multiply
    492,926.80x = 739,387.80 × 193,195.60
  4. Step 4: Simplify right side
    492,926.80x = 142,846,469,653.68
  5. Step 5: Solve for x
    x = 142,846,469,653.68/492,926.80
  6. Step 6: Final answer
    x = 289,792.46

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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.