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Finding the Fourth Proportional to 1,257.99, 1,734.35 and 1,033.10

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Solution

The fourth proportional to 1,257.99, 1,734.35 and 1,033.10 is: 1,424.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,257.99 : 1,734.35 = 1,033.10 : x
  2. Step 2: Convert to fraction form
    1,257.99/1,734.35 = 1,033.10/x
  3. Step 3: Cross multiply
    1,257.99x = 1,734.35 × 1,033.10
  4. Step 4: Simplify right side
    1,257.99x = 1,791,743.15
  5. Step 5: Solve for x
    x = 1,791,743.15/1,257.99
  6. Step 6: Final answer
    x = 1,424.29

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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.