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Finding the Fourth Proportional to 1,468.93, 2,202.97 and 688.14

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Solution

The fourth proportional to 1,468.93, 2,202.97 and 688.14 is: 1,032.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,468.93 : 2,202.97 = 688.14 : x
  2. Step 2: Convert to fraction form
    1,468.93/2,202.97 = 688.14/x
  3. Step 3: Cross multiply
    1,468.93x = 2,202.97 × 688.14
  4. Step 4: Simplify right side
    1,468.93x = 1,515,951.78
  5. Step 5: Solve for x
    x = 1,515,951.78/1,468.93
  6. Step 6: Final answer
    x = 1,032.01

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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.