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Finding the Fourth Proportional to 3,605.44, 5,408.18 and 1,008.32

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Solution

The fourth proportional to 3,605.44, 5,408.18 and 1,008.32 is: 1,512.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,605.44 : 5,408.18 = 1,008.32 : x
  2. Step 2: Convert to fraction form
    3,605.44/5,408.18 = 1,008.32/x
  3. Step 3: Cross multiply
    3,605.44x = 5,408.18 × 1,008.32
  4. Step 4: Simplify right side
    3,605.44x = 5,453,176.06
  5. Step 5: Solve for x
    x = 5,453,176.06/3,605.44
  6. Step 6: Final answer
    x = 1,512.49

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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.