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Finding the Fourth Proportional to 1,185.74, 1,778.91 and 536.52

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Solution

The fourth proportional to 1,185.74, 1,778.91 and 536.52 is: 804.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,185.74 : 1,778.91 = 536.52 : x
  2. Step 2: Convert to fraction form
    1,185.74/1,778.91 = 536.52/x
  3. Step 3: Cross multiply
    1,185.74x = 1,778.91 × 536.52
  4. Step 4: Simplify right side
    1,185.74x = 954,418.11
  5. Step 5: Solve for x
    x = 954,418.11/1,185.74
  6. Step 6: Final answer
    x = 804.92

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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.