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Finding the Fourth Proportional to 459,691.59, 690,183.26 and 235,213.05

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Solution

The fourth proportional to 459,691.59, 690,183.26 and 235,213.05 is: 353,150.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    459,691.59 : 690,183.26 = 235,213.05 : x
  2. Step 2: Convert to fraction form
    459,691.59/690,183.26 = 235,213.05/x
  3. Step 3: Cross multiply
    459,691.59x = 690,183.26 × 235,213.05
  4. Step 4: Simplify right side
    459,691.59x = 162,340,109,643.54
  5. Step 5: Solve for x
    x = 162,340,109,643.54/459,691.59
  6. Step 6: Final answer
    x = 353,150.05

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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.