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Finding the Fourth Proportional to 443,878.56, 612,520.92 and 252,856.80

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Solution

The fourth proportional to 443,878.56, 612,520.92 and 252,856.80 is: 348,924.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    443,878.56 : 612,520.92 = 252,856.80 : x
  2. Step 2: Convert to fraction form
    443,878.56/612,520.92 = 252,856.80/x
  3. Step 3: Cross multiply
    443,878.56x = 612,520.92 × 252,856.80
  4. Step 4: Simplify right side
    443,878.56x = 154,880,079,764.26
  5. Step 5: Solve for x
    x = 154,880,079,764.26/443,878.56
  6. Step 6: Final answer
    x = 348,924.44

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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.