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Finding the Fourth Proportional to 1,468.62, 2,202.90 and 494.73

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Solution

The fourth proportional to 1,468.62, 2,202.90 and 494.73 is: 742.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,468.62 : 2,202.90 = 494.73 : x
  2. Step 2: Convert to fraction form
    1,468.62/2,202.90 = 494.73/x
  3. Step 3: Cross multiply
    1,468.62x = 2,202.90 × 494.73
  4. Step 4: Simplify right side
    1,468.62x = 1,089,840.72
  5. Step 5: Solve for x
    x = 1,089,840.72/1,468.62
  6. Step 6: Final answer
    x = 742.08

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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.