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Finding the Fourth Proportional to 1,706.43, 2,354.97 and 1,043.18

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Solution

The fourth proportional to 1,706.43, 2,354.97 and 1,043.18 is: 1,439.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,706.43 : 2,354.97 = 1,043.18 : x
  2. Step 2: Convert to fraction form
    1,706.43/2,354.97 = 1,043.18/x
  3. Step 3: Cross multiply
    1,706.43x = 2,354.97 × 1,043.18
  4. Step 4: Simplify right side
    1,706.43x = 2,456,645.83
  5. Step 5: Solve for x
    x = 2,456,645.83/1,706.43
  6. Step 6: Final answer
    x = 1,439.64

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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.