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Finding the Fourth Proportional to 1,589.99, 2,385.33 and 616.09

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Solution

The fourth proportional to 1,589.99, 2,385.33 and 616.09 is: 924.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,589.99 : 2,385.33 = 616.09 : x
  2. Step 2: Convert to fraction form
    1,589.99/2,385.33 = 616.09/x
  3. Step 3: Cross multiply
    1,589.99x = 2,385.33 × 616.09
  4. Step 4: Simplify right side
    1,589.99x = 1,469,577.96
  5. Step 5: Solve for x
    x = 1,469,577.96/1,589.99
  6. Step 6: Final answer
    x = 924.27

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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.