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Finding the Fourth Proportional to 361,705.32, 499,144.86 and 200,558.88

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Solution

The fourth proportional to 361,705.32, 499,144.86 and 200,558.88 is: 276,766.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    361,705.32 : 499,144.86 = 200,558.88 : x
  2. Step 2: Convert to fraction form
    361,705.32/499,144.86 = 200,558.88/x
  3. Step 3: Cross multiply
    361,705.32x = 499,144.86 × 200,558.88
  4. Step 4: Simplify right side
    361,705.32x = 100,107,934,079.36
  5. Step 5: Solve for x
    x = 100,107,934,079.36/361,705.32
  6. Step 6: Final answer
    x = 276,766.55

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1.5x scale

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.