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Finding the Fourth Proportional to 539,930.43, 745,099.56 and 298,229.58

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Solution

The fourth proportional to 539,930.43, 745,099.56 and 298,229.58 is: 411,554.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    539,930.43 : 745,099.56 = 298,229.58 : x
  2. Step 2: Convert to fraction form
    539,930.43/745,099.56 = 298,229.58/x
  3. Step 3: Cross multiply
    539,930.43x = 745,099.56 × 298,229.58
  4. Step 4: Simplify right side
    539,930.43x = 222,210,728,836.99
  5. Step 5: Solve for x
    x = 222,210,728,836.99/539,930.43
  6. Step 6: Final answer
    x = 411,554.37

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.