Home / 1,296.49-1,943.95-516.61

Finding the Fourth Proportional to 1,296.49, 1,943.95 and 516.61

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Solution

The fourth proportional to 1,296.49, 1,943.95 and 516.61 is: 774.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,296.49 : 1,943.95 = 516.61 : x
  2. Step 2: Convert to fraction form
    1,296.49/1,943.95 = 516.61/x
  3. Step 3: Cross multiply
    1,296.49x = 1,943.95 × 516.61
  4. Step 4: Simplify right side
    1,296.49x = 1,004,257.37
  5. Step 5: Solve for x
    x = 1,004,257.37/1,296.49
  6. Step 6: Final answer
    x = 774.60

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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.