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Finding the Fourth Proportional to 3,412.44, 5,118.04 and 946.64

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Solution

The fourth proportional to 3,412.44, 5,118.04 and 946.64 is: 1,419.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,412.44 : 5,118.04 = 946.64 : x
  2. Step 2: Convert to fraction form
    3,412.44/5,118.04 = 946.64/x
  3. Step 3: Cross multiply
    3,412.44x = 5,118.04 × 946.64
  4. Step 4: Simplify right side
    3,412.44x = 4,844,941.39
  5. Step 5: Solve for x
    x = 4,844,941.39/3,412.44
  6. Step 6: Final answer
    x = 1,419.79

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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.