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Finding the Fourth Proportional to 1,116.10, 1,674.15 and 568.54

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Solution

The fourth proportional to 1,116.10, 1,674.15 and 568.54 is: 852.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,116.10 : 1,674.15 = 568.54 : x
  2. Step 2: Convert to fraction form
    1,116.10/1,674.15 = 568.54/x
  3. Step 3: Cross multiply
    1,116.10x = 1,674.15 × 568.54
  4. Step 4: Simplify right side
    1,116.10x = 951,821.24
  5. Step 5: Solve for x
    x = 951,821.24/1,116.10
  6. Step 6: Final answer
    x = 852.81

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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.