Home / 412,517.46-618,776.67-113,000.61

Finding the Fourth Proportional to 412,517.46, 618,776.67 and 113,000.61

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Solution

The fourth proportional to 412,517.46, 618,776.67 and 113,000.61 is: 169,501.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    412,517.46 : 618,776.67 = 113,000.61 : x
  2. Step 2: Convert to fraction form
    412,517.46/618,776.67 = 113,000.61/x
  3. Step 3: Cross multiply
    412,517.46x = 618,776.67 × 113,000.61
  4. Step 4: Simplify right side
    412,517.46x = 69,922,141,163.77
  5. Step 5: Solve for x
    x = 69,922,141,163.77/412,517.46
  6. Step 6: Final answer
    x = 169,501.05

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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.