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Finding the Fourth Proportional to 1,036.57, 1,554.86 and 267.07

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Solution

The fourth proportional to 1,036.57, 1,554.86 and 267.07 is: 400.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,036.57 : 1,554.86 = 267.07 : x
  2. Step 2: Convert to fraction form
    1,036.57/1,554.86 = 267.07/x
  3. Step 3: Cross multiply
    1,036.57x = 1,554.86 × 267.07
  4. Step 4: Simplify right side
    1,036.57x = 415,256.46
  5. Step 5: Solve for x
    x = 415,256.46/1,036.57
  6. Step 6: Final answer
    x = 400.61

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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.