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Finding the Fourth Proportional to 444,881.20, 667,321.80 and 112,457.20

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Solution

The fourth proportional to 444,881.20, 667,321.80 and 112,457.20 is: 168,685.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    444,881.20 : 667,321.80 = 112,457.20 : x
  2. Step 2: Convert to fraction form
    444,881.20/667,321.80 = 112,457.20/x
  3. Step 3: Cross multiply
    444,881.20x = 667,321.80 × 112,457.20
  4. Step 4: Simplify right side
    444,881.20x = 75,045,141,126.96
  5. Step 5: Solve for x
    x = 75,045,141,126.96/444,881.20
  6. Step 6: Final answer
    x = 168,685.80

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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.