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Finding the Fourth Proportional to 610,930.38, 843,043.41 and 338,981.04

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Solution

The fourth proportional to 610,930.38, 843,043.41 and 338,981.04 is: 467,771.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    610,930.38 : 843,043.41 = 338,981.04 : x
  2. Step 2: Convert to fraction form
    610,930.38/843,043.41 = 338,981.04/x
  3. Step 3: Cross multiply
    610,930.38x = 843,043.41 × 338,981.04
  4. Step 4: Simplify right side
    610,930.38x = 285,775,731,886.95
  5. Step 5: Solve for x
    x = 285,775,731,886.95/610,930.38
  6. Step 6: Final answer
    x = 467,771.36

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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.