Home / 691,126.80-1,036,620.12-185,622.11

Finding the Fourth Proportional to 691,126.80, 1,036,620.12 and 185,622.11

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Solution

The fourth proportional to 691,126.80, 1,036,620.12 and 185,622.11 is: 278,414.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    691,126.80 : 1,036,620.12 = 185,622.11 : x
  2. Step 2: Convert to fraction form
    691,126.80/1,036,620.12 = 185,622.11/x
  3. Step 3: Cross multiply
    691,126.80x = 1,036,620.12 × 185,622.11
  4. Step 4: Simplify right side
    691,126.80x = 192,419,613,942.85
  5. Step 5: Solve for x
    x = 192,419,613,942.85/691,126.80
  6. Step 6: Final answer
    x = 278,414.34

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.