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Finding the Fourth Proportional to 1,175.97, 1,765.82 and 934.53

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Solution

The fourth proportional to 1,175.97, 1,765.82 and 934.53 is: 1,403.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,175.97 : 1,765.82 = 934.53 : x
  2. Step 2: Convert to fraction form
    1,175.97/1,765.82 = 934.53/x
  3. Step 3: Cross multiply
    1,175.97x = 1,765.82 × 934.53
  4. Step 4: Simplify right side
    1,175.97x = 1,650,211.76
  5. Step 5: Solve for x
    x = 1,650,211.76/1,175.97
  6. Step 6: Final answer
    x = 1,403.28

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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.