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Finding the Fourth Proportional to 2,168.44, 3,253.18 and 707.60

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Solution

The fourth proportional to 2,168.44, 3,253.18 and 707.60 is: 1,061.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,168.44 : 3,253.18 = 707.60 : x
  2. Step 2: Convert to fraction form
    2,168.44/3,253.18 = 707.60/x
  3. Step 3: Cross multiply
    2,168.44x = 3,253.18 × 707.60
  4. Step 4: Simplify right side
    2,168.44x = 2,301,932.13
  5. Step 5: Solve for x
    x = 2,301,932.13/2,168.44
  6. Step 6: Final answer
    x = 1,061.56

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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.