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Finding the Fourth Proportional to 2,353.44, 3,527.78 and 892.20

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Solution

The fourth proportional to 2,353.44, 3,527.78 and 892.20 is: 1,337.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,353.44 : 3,527.78 = 892.20 : x
  2. Step 2: Convert to fraction form
    2,353.44/3,527.78 = 892.20/x
  3. Step 3: Cross multiply
    2,353.44x = 3,527.78 × 892.20
  4. Step 4: Simplify right side
    2,353.44x = 3,147,485.32
  5. Step 5: Solve for x
    x = 3,147,485.32/2,353.44
  6. Step 6: Final answer
    x = 1,337.40

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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.