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Finding the Fourth Proportional to 528,843.43, 793,580.36 and 191,910.37

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Solution

The fourth proportional to 528,843.43, 793,580.36 and 191,910.37 is: 287,979.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,843.43 : 793,580.36 = 191,910.37 : x
  2. Step 2: Convert to fraction form
    528,843.43/793,580.36 = 191,910.37/x
  3. Step 3: Cross multiply
    528,843.43x = 793,580.36 × 191,910.37
  4. Step 4: Simplify right side
    528,843.43x = 152,296,300,512.33
  5. Step 5: Solve for x
    x = 152,296,300,512.33/528,843.43
  6. Step 6: Final answer
    x = 287,979.94

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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.