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Finding the Fourth Proportional to 1,036.55, 1,554.82 and 267.05

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Solution

The fourth proportional to 1,036.55, 1,554.82 and 267.05 is: 400.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,036.55 : 1,554.82 = 267.05 : x
  2. Step 2: Convert to fraction form
    1,036.55/1,554.82 = 267.05/x
  3. Step 3: Cross multiply
    1,036.55x = 1,554.82 × 267.05
  4. Step 4: Simplify right side
    1,036.55x = 415,209.91
  5. Step 5: Solve for x
    x = 415,209.91/1,036.55
  6. Step 6: Final answer
    x = 400.57

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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.