Home / 298,836.40-447,736.20-193,601.20

Finding the Fourth Proportional to 298,836.40, 447,736.20 and 193,601.20

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Solution

The fourth proportional to 298,836.40, 447,736.20 and 193,601.20 is: 290,065.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    298,836.40 : 447,736.20 = 193,601.20 : x
  2. Step 2: Convert to fraction form
    298,836.40/447,736.20 = 193,601.20/x
  3. Step 3: Cross multiply
    298,836.40x = 447,736.20 × 193,601.20
  4. Step 4: Simplify right side
    298,836.40x = 86,682,265,603.44
  5. Step 5: Solve for x
    x = 86,682,265,603.44/298,836.40
  6. Step 6: Final answer
    x = 290,065.95

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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.