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Finding the Fourth Proportional to 459,635.67, 689,789.66 and 235,183.86

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Solution

The fourth proportional to 459,635.67, 689,789.66 and 235,183.86 is: 352,947.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    459,635.67 : 689,789.66 = 235,183.86 : x
  2. Step 2: Convert to fraction form
    459,635.67/689,789.66 = 235,183.86/x
  3. Step 3: Cross multiply
    459,635.67x = 689,789.66 × 235,183.86
  4. Step 4: Simplify right side
    459,635.67x = 162,227,393,650.97
  5. Step 5: Solve for x
    x = 162,227,393,650.97/459,635.67
  6. Step 6: Final answer
    x = 352,947.79

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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.