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Finding the Fourth Proportional to 481,469.80, 722,319.90 and 231,946.60

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Solution

The fourth proportional to 481,469.80, 722,319.90 and 231,946.60 is: 347,975.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    481,469.80 : 722,319.90 = 231,946.60 : x
  2. Step 2: Convert to fraction form
    481,469.80/722,319.90 = 231,946.60/x
  3. Step 3: Cross multiply
    481,469.80x = 722,319.90 × 231,946.60
  4. Step 4: Simplify right side
    481,469.80x = 167,539,644,917.34
  5. Step 5: Solve for x
    x = 167,539,644,917.34/481,469.80
  6. Step 6: Final answer
    x = 347,975.40

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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.