Home / 1,286,859.44-1,775,868.12-713,899.60

Finding the Fourth Proportional to 1,286,859.44, 1,775,868.12 and 713,899.60

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Solution

The fourth proportional to 1,286,859.44, 1,775,868.12 and 713,899.60 is: 985,182.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,286,859.44 : 1,775,868.12 = 713,899.60 : x
  2. Step 2: Convert to fraction form
    1,286,859.44/1,775,868.12 = 713,899.60/x
  3. Step 3: Cross multiply
    1,286,859.44x = 1,775,868.12 × 713,899.60
  4. Step 4: Simplify right side
    1,286,859.44x = 1,267,791,540,520.75
  5. Step 5: Solve for x
    x = 1,267,791,540,520.75/1,286,859.44
  6. Step 6: Final answer
    x = 985,182.61

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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.