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Finding the Fourth Proportional to 4,240.98, 6,323.43 and 4,078.44

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Solution

The fourth proportional to 4,240.98, 6,323.43 and 4,078.44 is: 6,081.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,240.98 : 6,323.43 = 4,078.44 : x
  2. Step 2: Convert to fraction form
    4,240.98/6,323.43 = 4,078.44/x
  3. Step 3: Cross multiply
    4,240.98x = 6,323.43 × 4,078.44
  4. Step 4: Simplify right side
    4,240.98x = 25,789,729.85
  5. Step 5: Solve for x
    x = 25,789,729.85/4,240.98
  6. Step 6: Final answer
    x = 6,081.08

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Find fourth proportional to 2,120.49, 3,161.72 and 2,039.22
Half scale
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Double scale
Find fourth proportional to 4,241.98, 6,324.92 and 4,079.44
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.