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Finding the Fourth Proportional to 653,194.35, 979,791.59 and 203,953.70

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Solution

The fourth proportional to 653,194.35, 979,791.59 and 203,953.70 is: 305,930.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    653,194.35 : 979,791.59 = 203,953.70 : x
  2. Step 2: Convert to fraction form
    653,194.35/979,791.59 = 203,953.70/x
  3. Step 3: Cross multiply
    653,194.35x = 979,791.59 × 203,953.70
  4. Step 4: Simplify right side
    653,194.35x = 199,832,122,968.75
  5. Step 5: Solve for x
    x = 199,832,122,968.75/653,194.35
  6. Step 6: Final answer
    x = 305,930.57

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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.