Home / 931,315.01-1,286,190.45-641,679.66

Finding the Fourth Proportional to 931,315.01, 1,286,190.45 and 641,679.66

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Solution

The fourth proportional to 931,315.01, 1,286,190.45 and 641,679.66 is: 886,190.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    931,315.01 : 1,286,190.45 = 641,679.66 : x
  2. Step 2: Convert to fraction form
    931,315.01/1,286,190.45 = 641,679.66/x
  3. Step 3: Cross multiply
    931,315.01x = 1,286,190.45 × 641,679.66
  4. Step 4: Simplify right side
    931,315.01x = 825,322,250,651.25
  5. Step 5: Solve for x
    x = 825,322,250,651.25/931,315.01
  6. Step 6: Final answer
    x = 886,190.22

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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.