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Finding the Fourth Proportional to 1,072.23, 1,479.75 and 600.17

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Solution

The fourth proportional to 1,072.23, 1,479.75 and 600.17 is: 828.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,072.23 : 1,479.75 = 600.17 : x
  2. Step 2: Convert to fraction form
    1,072.23/1,479.75 = 600.17/x
  3. Step 3: Cross multiply
    1,072.23x = 1,479.75 × 600.17
  4. Step 4: Simplify right side
    1,072.23x = 888,103.06
  5. Step 5: Solve for x
    x = 888,103.06/1,072.23
  6. Step 6: Final answer
    x = 828.27

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.