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Finding the Fourth Proportional to 3,303.21, 4,954.77 and 994.71

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Solution

The fourth proportional to 3,303.21, 4,954.77 and 994.71 is: 1,492.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,303.21 : 4,954.77 = 994.71 : x
  2. Step 2: Convert to fraction form
    3,303.21/4,954.77 = 994.71/x
  3. Step 3: Cross multiply
    3,303.21x = 4,954.77 × 994.71
  4. Step 4: Simplify right side
    3,303.21x = 4,928,559.27
  5. Step 5: Solve for x
    x = 4,928,559.27/3,303.21
  6. Step 6: Final answer
    x = 1,492.05

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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.