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Finding the Fourth Proportional to 492,751.80, 738,617.40 and 267,636.60

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Solution

The fourth proportional to 492,751.80, 738,617.40 and 267,636.60 is: 401,177.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    492,751.80 : 738,617.40 = 267,636.60 : x
  2. Step 2: Convert to fraction form
    492,751.80/738,617.40 = 267,636.60/x
  3. Step 3: Cross multiply
    492,751.80x = 738,617.40 × 267,636.60
  4. Step 4: Simplify right side
    492,751.80x = 197,681,049,636.84
  5. Step 5: Solve for x
    x = 197,681,049,636.84/492,751.80
  6. Step 6: Final answer
    x = 401,177.73

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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.