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Finding the Fourth Proportional to 1,468.67, 2,203.14 and 414.49

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Solution

The fourth proportional to 1,468.67, 2,203.14 and 414.49 is: 621.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,468.67 : 2,203.14 = 414.49 : x
  2. Step 2: Convert to fraction form
    1,468.67/2,203.14 = 414.49/x
  3. Step 3: Cross multiply
    1,468.67x = 2,203.14 × 414.49
  4. Step 4: Simplify right side
    1,468.67x = 913,189.35
  5. Step 5: Solve for x
    x = 913,189.35/1,468.67
  6. Step 6: Final answer
    x = 621.78

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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.