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Finding the Fourth Proportional to 3,408.55, 4,723.54 and 3,342.94

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Solution

The fourth proportional to 3,408.55, 4,723.54 and 3,342.94 is: 4,632.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,408.55 : 4,723.54 = 3,342.94 : x
  2. Step 2: Convert to fraction form
    3,408.55/4,723.54 = 3,342.94/x
  3. Step 3: Cross multiply
    3,408.55x = 4,723.54 × 3,342.94
  4. Step 4: Simplify right side
    3,408.55x = 15,790,510.81
  5. Step 5: Solve for x
    x = 15,790,510.81/3,408.55
  6. Step 6: Final answer
    x = 4,632.62

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.