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Finding the Fourth Proportional to 3,296.77, 4,944.97 and 831.58

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Solution

The fourth proportional to 3,296.77, 4,944.97 and 831.58 is: 1,247.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,296.77 : 4,944.97 = 831.58 : x
  2. Step 2: Convert to fraction form
    3,296.77/4,944.97 = 831.58/x
  3. Step 3: Cross multiply
    3,296.77x = 4,944.97 × 831.58
  4. Step 4: Simplify right side
    3,296.77x = 4,112,138.15
  5. Step 5: Solve for x
    x = 4,112,138.15/3,296.77
  6. Step 6: Final answer
    x = 1,247.32

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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.