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Finding the Fourth Proportional to 483,514.60, 667,211.14 and 279,578.60

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Solution

The fourth proportional to 483,514.60, 667,211.14 and 279,578.60 is: 385,795.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    483,514.60 : 667,211.14 = 279,578.60 : x
  2. Step 2: Convert to fraction form
    483,514.60/667,211.14 = 279,578.60/x
  3. Step 3: Cross multiply
    483,514.60x = 667,211.14 × 279,578.60
  4. Step 4: Simplify right side
    483,514.60x = 186,537,956,425.60
  5. Step 5: Solve for x
    x = 186,537,956,425.60/483,514.60
  6. Step 6: Final answer
    x = 385,795.91

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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.