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Finding the Fourth Proportional to 3,311.45, 4,967.30 and 846.33

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Solution

The fourth proportional to 3,311.45, 4,967.30 and 846.33 is: 1,269.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,311.45 : 4,967.30 = 846.33 : x
  2. Step 2: Convert to fraction form
    3,311.45/4,967.30 = 846.33/x
  3. Step 3: Cross multiply
    3,311.45x = 4,967.30 × 846.33
  4. Step 4: Simplify right side
    3,311.45x = 4,203,970.78
  5. Step 5: Solve for x
    x = 4,203,970.78/3,311.45
  6. Step 6: Final answer
    x = 1,269.53

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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.