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Finding the Fourth Proportional to 653,385.78, 979,901.82 and 179,958.60

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Solution

The fourth proportional to 653,385.78, 979,901.82 and 179,958.60 is: 269,889.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    653,385.78 : 979,901.82 = 179,958.60 : x
  2. Step 2: Convert to fraction form
    653,385.78/979,901.82 = 179,958.60/x
  3. Step 3: Cross multiply
    653,385.78x = 979,901.82 × 179,958.60
  4. Step 4: Simplify right side
    653,385.78x = 176,341,759,664.65
  5. Step 5: Solve for x
    x = 176,341,759,664.65/653,385.78
  6. Step 6: Final answer
    x = 269,889.19

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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.