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Finding the Fourth Proportional to 263,063.80, 394,595.70 and 163,336.60

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Solution

The fourth proportional to 263,063.80, 394,595.70 and 163,336.60 is: 245,004.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    263,063.80 : 394,595.70 = 163,336.60 : x
  2. Step 2: Convert to fraction form
    263,063.80/394,595.70 = 163,336.60/x
  3. Step 3: Cross multiply
    263,063.80x = 394,595.70 × 163,336.60
  4. Step 4: Simplify right side
    263,063.80x = 64,451,920,012.62
  5. Step 5: Solve for x
    x = 64,451,920,012.62/263,063.80
  6. Step 6: Final answer
    x = 245,004.90

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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.