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Finding the Fourth Proportional to 1,149.05, 1,722.33 and 564.46

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Solution

The fourth proportional to 1,149.05, 1,722.33 and 564.46 is: 846.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,149.05 : 1,722.33 = 564.46 : x
  2. Step 2: Convert to fraction form
    1,149.05/1,722.33 = 564.46/x
  3. Step 3: Cross multiply
    1,149.05x = 1,722.33 × 564.46
  4. Step 4: Simplify right side
    1,149.05x = 972,182.09
  5. Step 5: Solve for x
    x = 972,182.09/1,149.05
  6. Step 6: Final answer
    x = 846.07

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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.