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Finding the Fourth Proportional to 1,088.84, 1,633.25 and 267.11

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Solution

The fourth proportional to 1,088.84, 1,633.25 and 267.11 is: 400.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,088.84 : 1,633.25 = 267.11 : x
  2. Step 2: Convert to fraction form
    1,088.84/1,633.25 = 267.11/x
  3. Step 3: Cross multiply
    1,088.84x = 1,633.25 × 267.11
  4. Step 4: Simplify right side
    1,088.84x = 436,257.41
  5. Step 5: Solve for x
    x = 436,257.41/1,088.84
  6. Step 6: Final answer
    x = 400.66

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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.