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Finding the Fourth Proportional to 582,085.58, 873,128.60 and 261,863.42

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Solution

The fourth proportional to 582,085.58, 873,128.60 and 261,863.42 is: 392,795.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    582,085.58 : 873,128.60 = 261,863.42 : x
  2. Step 2: Convert to fraction form
    582,085.58/873,128.60 = 261,863.42/x
  3. Step 3: Cross multiply
    582,085.58x = 873,128.60 × 261,863.42
  4. Step 4: Simplify right side
    582,085.58x = 228,640,435,620.85
  5. Step 5: Solve for x
    x = 228,640,435,620.85/582,085.58
  6. Step 6: Final answer
    x = 392,795.23

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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.