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Finding the Fourth Proportional to 414,591.44, 620,890.56 and 236,558.70

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Solution

The fourth proportional to 414,591.44, 620,890.56 and 236,558.70 is: 354,269.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    414,591.44 : 620,890.56 = 236,558.70 : x
  2. Step 2: Convert to fraction form
    414,591.44/620,890.56 = 236,558.70/x
  3. Step 3: Cross multiply
    414,591.44x = 620,890.56 × 236,558.70
  4. Step 4: Simplify right side
    414,591.44x = 146,877,063,715.87
  5. Step 5: Solve for x
    x = 146,877,063,715.87/414,591.44
  6. Step 6: Final answer
    x = 354,269.41

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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.