Home / 820,401.19-1,228,453.62-659,622.67

Finding the Fourth Proportional to 820,401.19, 1,228,453.62 and 659,622.67

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Solution

The fourth proportional to 820,401.19, 1,228,453.62 and 659,622.67 is: 987,706.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    820,401.19 : 1,228,453.62 = 659,622.67 : x
  2. Step 2: Convert to fraction form
    820,401.19/1,228,453.62 = 659,622.67/x
  3. Step 3: Cross multiply
    820,401.19x = 1,228,453.62 × 659,622.67
  4. Step 4: Simplify right side
    820,401.19x = 810,315,856,795.57
  5. Step 5: Solve for x
    x = 810,315,856,795.57/820,401.19
  6. Step 6: Final answer
    x = 987,706.83

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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.