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Finding the Fourth Proportional to 1,590.59, 2,385.22 and 616.13

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Solution

The fourth proportional to 1,590.59, 2,385.22 and 616.13 is: 923.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,590.59 : 2,385.22 = 616.13 : x
  2. Step 2: Convert to fraction form
    1,590.59/2,385.22 = 616.13/x
  3. Step 3: Cross multiply
    1,590.59x = 2,385.22 × 616.13
  4. Step 4: Simplify right side
    1,590.59x = 1,469,592.13
  5. Step 5: Solve for x
    x = 1,469,592.13/1,590.59
  6. Step 6: Final answer
    x = 923.93

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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.