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Finding the Fourth Proportional to 481,540.40, 722,310.60 and 245,344.40

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Solution

The fourth proportional to 481,540.40, 722,310.60 and 245,344.40 is: 368,016.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    481,540.40 : 722,310.60 = 245,344.40 : x
  2. Step 2: Convert to fraction form
    481,540.40/722,310.60 = 245,344.40/x
  3. Step 3: Cross multiply
    481,540.40x = 722,310.60 × 245,344.40
  4. Step 4: Simplify right side
    481,540.40x = 177,214,860,770.64
  5. Step 5: Solve for x
    x = 177,214,860,770.64/481,540.40
  6. Step 6: Final answer
    x = 368,016.60

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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.