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Finding the Fourth Proportional to 641,176.80, 962,110.80 and 267,237.60

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Solution

The fourth proportional to 641,176.80, 962,110.80 and 267,237.60 is: 401,000.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    641,176.80 : 962,110.80 = 267,237.60 : x
  2. Step 2: Convert to fraction form
    641,176.80/962,110.80 = 267,237.60/x
  3. Step 3: Cross multiply
    641,176.80x = 962,110.80 × 267,237.60
  4. Step 4: Simplify right side
    641,176.80x = 257,112,181,126.08
  5. Step 5: Solve for x
    x = 257,112,181,126.08/641,176.80
  6. Step 6: Final answer
    x = 401,000.44

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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.