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Finding the Fourth Proportional to 262,886.40, 394,329.60 and 192,902.40

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Solution

The fourth proportional to 262,886.40, 394,329.60 and 192,902.40 is: 289,353.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    262,886.40 : 394,329.60 = 192,902.40 : x
  2. Step 2: Convert to fraction form
    262,886.40/394,329.60 = 192,902.40/x
  3. Step 3: Cross multiply
    262,886.40x = 394,329.60 × 192,902.40
  4. Step 4: Simplify right side
    262,886.40x = 76,067,126,231.04
  5. Step 5: Solve for x
    x = 76,067,126,231.04/262,886.40
  6. Step 6: Final answer
    x = 289,353.60

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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.