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Finding the Fourth Proportional to 444,909.70, 667,364.55 and 112,485.70

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Solution

The fourth proportional to 444,909.70, 667,364.55 and 112,485.70 is: 168,728.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    444,909.70 : 667,364.55 = 112,485.70 : x
  2. Step 2: Convert to fraction form
    444,909.70/667,364.55 = 112,485.70/x
  3. Step 3: Cross multiply
    444,909.70x = 667,364.55 × 112,485.70
  4. Step 4: Simplify right side
    444,909.70x = 75,068,968,561.94
  5. Step 5: Solve for x
    x = 75,068,968,561.94/444,909.70
  6. Step 6: Final answer
    x = 168,728.55

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Similar ratio
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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.