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Finding the Fourth Proportional to 1,564.36, 2,344.50 and 833.44

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Solution

The fourth proportional to 1,564.36, 2,344.50 and 833.44 is: 1,249.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,564.36 : 2,344.50 = 833.44 : x
  2. Step 2: Convert to fraction form
    1,564.36/2,344.50 = 833.44/x
  3. Step 3: Cross multiply
    1,564.36x = 2,344.50 × 833.44
  4. Step 4: Simplify right side
    1,564.36x = 1,954,000.08
  5. Step 5: Solve for x
    x = 1,954,000.08/1,564.36
  6. Step 6: Final answer
    x = 1,249.07

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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.