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Finding the Fourth Proportional to 443,879.75, 612,578.60 and 252,856.55

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Solution

The fourth proportional to 443,879.75, 612,578.60 and 252,856.55 is: 348,956.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    443,879.75 : 612,578.60 = 252,856.55 : x
  2. Step 2: Convert to fraction form
    443,879.75/612,578.60 = 252,856.55/x
  3. Step 3: Cross multiply
    443,879.75x = 612,578.60 × 252,856.55
  4. Step 4: Simplify right side
    443,879.75x = 154,894,510,135.55
  5. Step 5: Solve for x
    x = 154,894,510,135.55/443,879.75
  6. Step 6: Final answer
    x = 348,956.02

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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.