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Finding the Fourth Proportional to 3,605.70, 5,408.73 and 1,008.30

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Solution

The fourth proportional to 3,605.70, 5,408.73 and 1,008.30 is: 1,512.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,605.70 : 5,408.73 = 1,008.30 : x
  2. Step 2: Convert to fraction form
    3,605.70/5,408.73 = 1,008.30/x
  3. Step 3: Cross multiply
    3,605.70x = 5,408.73 × 1,008.30
  4. Step 4: Simplify right side
    3,605.70x = 5,453,622.46
  5. Step 5: Solve for x
    x = 5,453,622.46/3,605.70
  6. Step 6: Final answer
    x = 1,512.50

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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.