Home / 641,986.62-962,977.60-192,705.54

Finding the Fourth Proportional to 641,986.62, 962,977.60 and 192,705.54

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Solution

The fourth proportional to 641,986.62, 962,977.60 and 192,705.54 is: 289,057.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    641,986.62 : 962,977.60 = 192,705.54 : x
  2. Step 2: Convert to fraction form
    641,986.62/962,977.60 = 192,705.54/x
  3. Step 3: Cross multiply
    641,986.62x = 962,977.60 × 192,705.54
  4. Step 4: Simplify right side
    641,986.62x = 185,571,118,415.90
  5. Step 5: Solve for x
    x = 185,571,118,415.90/641,986.62
  6. Step 6: Final answer
    x = 289,057.61

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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.