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Finding the Fourth Proportional to 1,036.56, 1,554.84 and 267

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Solution

The fourth proportional to 1,036.56, 1,554.84 and 267 is: 400.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,036.56 : 1,554.84 = 267 : x
  2. Step 2: Convert to fraction form
    1,036.56/1,554.84 = 267/x
  3. Step 3: Cross multiply
    1,036.56x = 1,554.84 × 267
  4. Step 4: Simplify right side
    1,036.56x = 415,142.28
  5. Step 5: Solve for x
    x = 415,142.28/1,036.56
  6. Step 6: Final answer
    x = 400.50

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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.