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Finding the Fourth Proportional to 1,024.90, 1,414.68 and 605.22

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Solution

The fourth proportional to 1,024.90, 1,414.68 and 605.22 is: 835.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,024.90 : 1,414.68 = 605.22 : x
  2. Step 2: Convert to fraction form
    1,024.90/1,414.68 = 605.22/x
  3. Step 3: Cross multiply
    1,024.90x = 1,414.68 × 605.22
  4. Step 4: Simplify right side
    1,024.90x = 856,192.63
  5. Step 5: Solve for x
    x = 856,192.63/1,024.90
  6. Step 6: Final answer
    x = 835.39

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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.