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Finding the Fourth Proportional to 606,910.10, 910,620.30 and 326,099.30

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Solution

The fourth proportional to 606,910.10, 910,620.30 and 326,099.30 is: 489,286.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    606,910.10 : 910,620.30 = 326,099.30 : x
  2. Step 2: Convert to fraction form
    606,910.10/910,620.30 = 326,099.30/x
  3. Step 3: Cross multiply
    606,910.10x = 910,620.30 × 326,099.30
  4. Step 4: Simplify right side
    606,910.10x = 296,952,642,395.79
  5. Step 5: Solve for x
    x = 296,952,642,395.79/606,910.10
  6. Step 6: Final answer
    x = 489,286.04

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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.