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Finding the Fourth Proportional to 1,144.54, 1,716.95 and 364.58

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Solution

The fourth proportional to 1,144.54, 1,716.95 and 364.58 is: 546.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,144.54 : 1,716.95 = 364.58 : x
  2. Step 2: Convert to fraction form
    1,144.54/1,716.95 = 364.58/x
  3. Step 3: Cross multiply
    1,144.54x = 1,716.95 × 364.58
  4. Step 4: Simplify right side
    1,144.54x = 625,965.63
  5. Step 5: Solve for x
    x = 625,965.63/1,144.54
  6. Step 6: Final answer
    x = 546.91

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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.