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Finding the Fourth Proportional to 389,595.62, 584,578.53 and 269,836.89

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Solution

The fourth proportional to 389,595.62, 584,578.53 and 269,836.89 is: 404,883.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,595.62 : 584,578.53 = 269,836.89 : x
  2. Step 2: Convert to fraction form
    389,595.62/584,578.53 = 269,836.89/x
  3. Step 3: Cross multiply
    389,595.62x = 584,578.53 × 269,836.89
  4. Step 4: Simplify right side
    389,595.62x = 157,740,852,495.97
  5. Step 5: Solve for x
    x = 157,740,852,495.97/389,595.62
  6. Step 6: Final answer
    x = 404,883.54

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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.