Home / 856,340.38-1,181,749.54-469,169.54

Finding the Fourth Proportional to 856,340.38, 1,181,749.54 and 469,169.54

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Solution

The fourth proportional to 856,340.38, 1,181,749.54 and 469,169.54 is: 647,453.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    856,340.38 : 1,181,749.54 = 469,169.54 : x
  2. Step 2: Convert to fraction form
    856,340.38/1,181,749.54 = 469,169.54/x
  3. Step 3: Cross multiply
    856,340.38x = 1,181,749.54 × 469,169.54
  4. Step 4: Simplify right side
    856,340.38x = 554,440,888,077.01
  5. Step 5: Solve for x
    x = 554,440,888,077.01/856,340.38
  6. Step 6: Final answer
    x = 647,453.86

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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.