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Finding the Fourth Proportional to 2,134.70, 3,202.34 and 747.93

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Solution

The fourth proportional to 2,134.70, 3,202.34 and 747.93 is: 1,122.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,134.70 : 3,202.34 = 747.93 : x
  2. Step 2: Convert to fraction form
    2,134.70/3,202.34 = 747.93/x
  3. Step 3: Cross multiply
    2,134.70x = 3,202.34 × 747.93
  4. Step 4: Simplify right side
    2,134.70x = 2,395,134.43
  5. Step 5: Solve for x
    x = 2,395,134.43/2,134.70
  6. Step 6: Final answer
    x = 1,122.00

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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.