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Finding the Fourth Proportional to 262,906.40, 394,359.60 and 192,922.40

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Solution

The fourth proportional to 262,906.40, 394,359.60 and 192,922.40 is: 289,383.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    262,906.40 : 394,359.60 = 192,922.40 : x
  2. Step 2: Convert to fraction form
    262,906.40/394,359.60 = 192,922.40/x
  3. Step 3: Cross multiply
    262,906.40x = 394,359.60 × 192,922.40
  4. Step 4: Simplify right side
    262,906.40x = 76,080,800,495.04
  5. Step 5: Solve for x
    x = 76,080,800,495.04/262,906.40
  6. Step 6: Final answer
    x = 289,383.60

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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.