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Finding the Fourth Proportional to 1,168.65, 1,755.27 and 995.58

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Solution

The fourth proportional to 1,168.65, 1,755.27 and 995.58 is: 1,495.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,168.65 : 1,755.27 = 995.58 : x
  2. Step 2: Convert to fraction form
    1,168.65/1,755.27 = 995.58/x
  3. Step 3: Cross multiply
    1,168.65x = 1,755.27 × 995.58
  4. Step 4: Simplify right side
    1,168.65x = 1,747,511.71
  5. Step 5: Solve for x
    x = 1,747,511.71/1,168.65
  6. Step 6: Final answer
    x = 1,495.33

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.