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Finding the Fourth Proportional to 561,891.44, 842,443.22 and 206,859.26

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Solution

The fourth proportional to 561,891.44, 842,443.22 and 206,859.26 is: 310,143.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    561,891.44 : 842,443.22 = 206,859.26 : x
  2. Step 2: Convert to fraction form
    561,891.44/842,443.22 = 206,859.26/x
  3. Step 3: Cross multiply
    561,891.44x = 842,443.22 × 206,859.26
  4. Step 4: Simplify right side
    561,891.44x = 174,267,181,081.22
  5. Step 5: Solve for x
    x = 174,267,181,081.22/561,891.44
  6. Step 6: Final answer
    x = 310,143.86

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Double scale
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1.5x scale

Why These Related Problems?

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