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Finding the Fourth Proportional to 431,993.58, 648,279.60 and 179,274.33

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Solution

The fourth proportional to 431,993.58, 648,279.60 and 179,274.33 is: 269,031.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    431,993.58 : 648,279.60 = 179,274.33 : x
  2. Step 2: Convert to fraction form
    431,993.58/648,279.60 = 179,274.33/x
  3. Step 3: Cross multiply
    431,993.58x = 648,279.60 × 179,274.33
  4. Step 4: Simplify right side
    431,993.58x = 116,219,890,942.67
  5. Step 5: Solve for x
    x = 116,219,890,942.67/431,993.58
  6. Step 6: Final answer
    x = 269,031.52

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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.