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Finding the Fourth Proportional to 1,529.44, 2,292.72 and 844

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Solution

The fourth proportional to 1,529.44, 2,292.72 and 844 is: 1,265.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,529.44 : 2,292.72 = 844 : x
  2. Step 2: Convert to fraction form
    1,529.44/2,292.72 = 844/x
  3. Step 3: Cross multiply
    1,529.44x = 2,292.72 × 844
  4. Step 4: Simplify right side
    1,529.44x = 1,935,055.68
  5. Step 5: Solve for x
    x = 1,935,055.68/1,529.44
  6. Step 6: Final answer
    x = 1,265.21

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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.