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Finding the Fourth Proportional to 3,295.42, 4,943.16 and 830.22

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Solution

The fourth proportional to 3,295.42, 4,943.16 and 830.22 is: 1,245.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,295.42 : 4,943.16 = 830.22 : x
  2. Step 2: Convert to fraction form
    3,295.42/4,943.16 = 830.22/x
  3. Step 3: Cross multiply
    3,295.42x = 4,943.16 × 830.22
  4. Step 4: Simplify right side
    3,295.42x = 4,103,910.30
  5. Step 5: Solve for x
    x = 4,103,910.30/3,295.42
  6. Step 6: Final answer
    x = 1,245.34

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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.