Home / 1,286,851.68-1,775,857.41-713,891.86

Finding the Fourth Proportional to 1,286,851.68, 1,775,857.41 and 713,891.86

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Solution

The fourth proportional to 1,286,851.68, 1,775,857.41 and 713,891.86 is: 985,171.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,286,851.68 : 1,775,857.41 = 713,891.86 : x
  2. Step 2: Convert to fraction form
    1,286,851.68/1,775,857.41 = 713,891.86/x
  3. Step 3: Cross multiply
    1,286,851.68x = 1,775,857.41 × 713,891.86
  4. Step 4: Simplify right side
    1,286,851.68x = 1,267,770,145,080.04
  5. Step 5: Solve for x
    x = 1,267,770,145,080.04/1,286,851.68
  6. Step 6: Final answer
    x = 985,171.92

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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.