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Finding the Fourth Proportional to 358,583.85, 494,863.89 and 203,546.05

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Solution

The fourth proportional to 358,583.85, 494,863.89 and 203,546.05 is: 280,903.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,583.85 : 494,863.89 = 203,546.05 : x
  2. Step 2: Convert to fraction form
    358,583.85/494,863.89 = 203,546.05/x
  3. Step 3: Cross multiply
    358,583.85x = 494,863.89 × 203,546.05
  4. Step 4: Simplify right side
    358,583.85x = 100,727,590,097.13
  5. Step 5: Solve for x
    x = 100,727,590,097.13/358,583.85
  6. Step 6: Final answer
    x = 280,903.87

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.