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Finding the Fourth Proportional to 355,402.20, 534,269.70 and 250,944.60

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Solution

The fourth proportional to 355,402.20, 534,269.70 and 250,944.60 is: 377,240.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,402.20 : 534,269.70 = 250,944.60 : x
  2. Step 2: Convert to fraction form
    355,402.20/534,269.70 = 250,944.60/x
  3. Step 3: Cross multiply
    355,402.20x = 534,269.70 × 250,944.60
  4. Step 4: Simplify right side
    355,402.20x = 134,072,096,158.62
  5. Step 5: Solve for x
    x = 134,072,096,158.62/355,402.20
  6. Step 6: Final answer
    x = 377,240.48

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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.