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Finding the Fourth Proportional to 263,274.80, 394,912.20 and 174,628.40

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Solution

The fourth proportional to 263,274.80, 394,912.20 and 174,628.40 is: 261,942.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    263,274.80 : 394,912.20 = 174,628.40 : x
  2. Step 2: Convert to fraction form
    263,274.80/394,912.20 = 174,628.40/x
  3. Step 3: Cross multiply
    263,274.80x = 394,912.20 × 174,628.40
  4. Step 4: Simplify right side
    263,274.80x = 68,962,885,626.48
  5. Step 5: Solve for x
    x = 68,962,885,626.48/263,274.80
  6. Step 6: Final answer
    x = 261,942.60

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1.5x scale

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.