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Finding the Fourth Proportional to 1,104.96, 1,656.92 and 488.84

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Solution

The fourth proportional to 1,104.96, 1,656.92 and 488.84 is: 733.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,104.96 : 1,656.92 = 488.84 : x
  2. Step 2: Convert to fraction form
    1,104.96/1,656.92 = 488.84/x
  3. Step 3: Cross multiply
    1,104.96x = 1,656.92 × 488.84
  4. Step 4: Simplify right side
    1,104.96x = 809,958.04
  5. Step 5: Solve for x
    x = 809,958.04/1,104.96
  6. Step 6: Final answer
    x = 733.02

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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.