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Finding the Fourth Proportional to 1,117.24, 1,674.83 and 568.22

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Solution

The fourth proportional to 1,117.24, 1,674.83 and 568.22 is: 851.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,117.24 : 1,674.83 = 568.22 : x
  2. Step 2: Convert to fraction form
    1,117.24/1,674.83 = 568.22/x
  3. Step 3: Cross multiply
    1,117.24x = 1,674.83 × 568.22
  4. Step 4: Simplify right side
    1,117.24x = 951,661.75
  5. Step 5: Solve for x
    x = 951,661.75/1,117.24
  6. Step 6: Final answer
    x = 851.79

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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.