Home / 684,516.38-944,668.02-394,171.06

Finding the Fourth Proportional to 684,516.38, 944,668.02 and 394,171.06

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Solution

The fourth proportional to 684,516.38, 944,668.02 and 394,171.06 is: 543,976.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    684,516.38 : 944,668.02 = 394,171.06 : x
  2. Step 2: Convert to fraction form
    684,516.38/944,668.02 = 394,171.06/x
  3. Step 3: Cross multiply
    684,516.38x = 944,668.02 × 394,171.06
  4. Step 4: Simplify right side
    684,516.38x = 372,360,794,791.50
  5. Step 5: Solve for x
    x = 372,360,794,791.50/684,516.38
  6. Step 6: Final answer
    x = 543,976.46

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Double scale
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1.5x scale

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.