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Finding the Fourth Proportional to 1,175.28, 1,763.22 and 526.47

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Solution

The fourth proportional to 1,175.28, 1,763.22 and 526.47 is: 789.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,175.28 : 1,763.22 = 526.47 : x
  2. Step 2: Convert to fraction form
    1,175.28/1,763.22 = 526.47/x
  3. Step 3: Cross multiply
    1,175.28x = 1,763.22 × 526.47
  4. Step 4: Simplify right side
    1,175.28x = 928,282.43
  5. Step 5: Solve for x
    x = 928,282.43/1,175.28
  6. Step 6: Final answer
    x = 789.84

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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.