Home / 1,120,233.70-1,545,656.78-636,760.78

Finding the Fourth Proportional to 1,120,233.70, 1,545,656.78 and 636,760.78

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Solution

The fourth proportional to 1,120,233.70, 1,545,656.78 and 636,760.78 is: 878,578.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,120,233.70 : 1,545,656.78 = 636,760.78 : x
  2. Step 2: Convert to fraction form
    1,120,233.70/1,545,656.78 = 636,760.78/x
  3. Step 3: Cross multiply
    1,120,233.70x = 1,545,656.78 × 636,760.78
  4. Step 4: Simplify right side
    1,120,233.70x = 984,213,609,797.14
  5. Step 5: Solve for x
    x = 984,213,609,797.14/1,120,233.70
  6. Step 6: Final answer
    x = 878,578.83

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.