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Finding the Fourth Proportional to 459,354.27, 689,171.29 and 234,872.39

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Solution

The fourth proportional to 459,354.27, 689,171.29 and 234,872.39 is: 352,380.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    459,354.27 : 689,171.29 = 234,872.39 : x
  2. Step 2: Convert to fraction form
    459,354.27/689,171.29 = 234,872.39/x
  3. Step 3: Cross multiply
    459,354.27x = 689,171.29 × 234,872.39
  4. Step 4: Simplify right side
    459,354.27x = 161,867,309,137.43
  5. Step 5: Solve for x
    x = 161,867,309,137.43/459,354.27
  6. Step 6: Final answer
    x = 352,380.11

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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.