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Finding the Fourth Proportional to 481,629.60, 664,659.63 and 274,893.87

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Solution

The fourth proportional to 481,629.60, 664,659.63 and 274,893.87 is: 379,359.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    481,629.60 : 664,659.63 = 274,893.87 : x
  2. Step 2: Convert to fraction form
    481,629.60/664,659.63 = 274,893.87/x
  3. Step 3: Cross multiply
    481,629.60x = 664,659.63 × 274,893.87
  4. Step 4: Simplify right side
    481,629.60x = 182,710,857,923.47
  5. Step 5: Solve for x
    x = 182,710,857,923.47/481,629.60
  6. Step 6: Final answer
    x = 379,359.69

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.