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Finding the Fourth Proportional to 613,589.05, 920,446.55 and 234,828.39

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Solution

The fourth proportional to 613,589.05, 920,446.55 and 234,828.39 is: 352,266.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    613,589.05 : 920,446.55 = 234,828.39 : x
  2. Step 2: Convert to fraction form
    613,589.05/920,446.55 = 234,828.39/x
  3. Step 3: Cross multiply
    613,589.05x = 920,446.55 × 234,828.39
  4. Step 4: Simplify right side
    613,589.05x = 216,146,984,575.69
  5. Step 5: Solve for x
    x = 216,146,984,575.69/613,589.05
  6. Step 6: Final answer
    x = 352,266.69

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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.