Home / 1,286,850.43-1,775,855.69-713,890.61

Finding the Fourth Proportional to 1,286,850.43, 1,775,855.69 and 713,890.61

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Solution

The fourth proportional to 1,286,850.43, 1,775,855.69 and 713,890.61 is: 985,170.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,286,850.43 : 1,775,855.69 = 713,890.61 : x
  2. Step 2: Convert to fraction form
    1,286,850.43/1,775,855.69 = 713,890.61/x
  3. Step 3: Cross multiply
    1,286,850.43x = 1,775,855.69 × 713,890.61
  4. Step 4: Simplify right side
    1,286,850.43x = 1,267,766,701,806.07
  5. Step 5: Solve for x
    x = 1,267,766,701,806.07/1,286,850.43
  6. Step 6: Final answer
    x = 985,170.20

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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.