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Finding the Fourth Proportional to 529,196.87, 730,296.87 and 287,481.41

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Solution

The fourth proportional to 529,196.87, 730,296.87 and 287,481.41 is: 396,727.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    529,196.87 : 730,296.87 = 287,481.41 : x
  2. Step 2: Convert to fraction form
    529,196.87/730,296.87 = 287,481.41/x
  3. Step 3: Cross multiply
    529,196.87x = 730,296.87 × 287,481.41
  4. Step 4: Simplify right side
    529,196.87x = 209,946,773,906.19
  5. Step 5: Solve for x
    x = 209,946,773,906.19/529,196.87
  6. Step 6: Final answer
    x = 396,727.16

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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.