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Finding the Fourth Proportional to 1,144.83, 1,718.07 and 414.48

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Solution

The fourth proportional to 1,144.83, 1,718.07 and 414.48 is: 622.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,144.83 : 1,718.07 = 414.48 : x
  2. Step 2: Convert to fraction form
    1,144.83/1,718.07 = 414.48/x
  3. Step 3: Cross multiply
    1,144.83x = 1,718.07 × 414.48
  4. Step 4: Simplify right side
    1,144.83x = 712,105.65
  5. Step 5: Solve for x
    x = 712,105.65/1,144.83
  6. Step 6: Final answer
    x = 622.02

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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.