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Finding the Fourth Proportional to 603,902.80, 906,372.60 and 267,461.20

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Solution

The fourth proportional to 603,902.80, 906,372.60 and 267,461.20 is: 401,421.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    603,902.80 : 906,372.60 = 267,461.20 : x
  2. Step 2: Convert to fraction form
    603,902.80/906,372.60 = 267,461.20/x
  3. Step 3: Cross multiply
    603,902.80x = 906,372.60 × 267,461.20
  4. Step 4: Simplify right side
    603,902.80x = 242,419,503,243.12
  5. Step 5: Solve for x
    x = 242,419,503,243.12/603,902.80
  6. Step 6: Final answer
    x = 401,421.39

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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.