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Finding the Fourth Proportional to 417,992.26, 577,068.42 and 275,167.49

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Solution

The fourth proportional to 417,992.26, 577,068.42 and 275,167.49 is: 379,888.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    417,992.26 : 577,068.42 = 275,167.49 : x
  2. Step 2: Convert to fraction form
    417,992.26/577,068.42 = 275,167.49/x
  3. Step 3: Cross multiply
    417,992.26x = 577,068.42 × 275,167.49
  4. Step 4: Simplify right side
    417,992.26x = 158,790,467,213.58
  5. Step 5: Solve for x
    x = 158,790,467,213.58/417,992.26
  6. Step 6: Final answer
    x = 379,888.54

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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.