Home / 931,310.88-1,286,184.77-641,675.54

Finding the Fourth Proportional to 931,310.88, 1,286,184.77 and 641,675.54

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Solution

The fourth proportional to 931,310.88, 1,286,184.77 and 641,675.54 is: 886,184.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    931,310.88 : 1,286,184.77 = 641,675.54 : x
  2. Step 2: Convert to fraction form
    931,310.88/1,286,184.77 = 641,675.54/x
  3. Step 3: Cross multiply
    931,310.88x = 1,286,184.77 × 641,675.54
  4. Step 4: Simplify right side
    931,310.88x = 825,313,297,190.22
  5. Step 5: Solve for x
    x = 825,313,297,190.22/931,310.88
  6. Step 6: Final answer
    x = 886,184.53

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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.