Home / 853,570.17-1,279,251.48-638,651.85

Finding the Fourth Proportional to 853,570.17, 1,279,251.48 and 638,651.85

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Solution

The fourth proportional to 853,570.17, 1,279,251.48 and 638,651.85 is: 957,151.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    853,570.17 : 1,279,251.48 = 638,651.85 : x
  2. Step 2: Convert to fraction form
    853,570.17/1,279,251.48 = 638,651.85/x
  3. Step 3: Cross multiply
    853,570.17x = 1,279,251.48 × 638,651.85
  4. Step 4: Simplify right side
    853,570.17x = 816,996,324,317.24
  5. Step 5: Solve for x
    x = 816,996,324,317.24/853,570.17
  6. Step 6: Final answer
    x = 957,151.92

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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.