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Finding the Fourth Proportional to 1,160.58, 1,600.67 and 1,020.41

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Solution

The fourth proportional to 1,160.58, 1,600.67 and 1,020.41 is: 1,407.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,160.58 : 1,600.67 = 1,020.41 : x
  2. Step 2: Convert to fraction form
    1,160.58/1,600.67 = 1,020.41/x
  3. Step 3: Cross multiply
    1,160.58x = 1,600.67 × 1,020.41
  4. Step 4: Simplify right side
    1,160.58x = 1,633,340.22
  5. Step 5: Solve for x
    x = 1,633,340.22/1,160.58
  6. Step 6: Final answer
    x = 1,407.34

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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.