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Finding the Fourth Proportional to 391,093.57, 585,573.50 and 296,035.61

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Solution

The fourth proportional to 391,093.57, 585,573.50 and 296,035.61 is: 443,245.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    391,093.57 : 585,573.50 = 296,035.61 : x
  2. Step 2: Convert to fraction form
    391,093.57/585,573.50 = 296,035.61/x
  3. Step 3: Cross multiply
    391,093.57x = 585,573.50 × 296,035.61
  4. Step 4: Simplify right side
    391,093.57x = 173,350,609,378.41
  5. Step 5: Solve for x
    x = 173,350,609,378.41/391,093.57
  6. Step 6: Final answer
    x = 443,245.87

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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.