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Finding the Fourth Proportional to 263,031.60, 394,401.60 and 113,246.40

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Solution

The fourth proportional to 263,031.60, 394,401.60 and 113,246.40 is: 169,806.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    263,031.60 : 394,401.60 = 113,246.40 : x
  2. Step 2: Convert to fraction form
    263,031.60/394,401.60 = 113,246.40/x
  3. Step 3: Cross multiply
    263,031.60x = 394,401.60 × 113,246.40
  4. Step 4: Simplify right side
    263,031.60x = 44,664,561,354.24
  5. Step 5: Solve for x
    x = 44,664,561,354.24/263,031.60
  6. Step 6: Final answer
    x = 169,806.83

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1.5x scale

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.