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Finding the Fourth Proportional to 444,990.40, 667,190.80 and 245,406.40

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Solution

The fourth proportional to 444,990.40, 667,190.80 and 245,406.40 is: 367,947.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    444,990.40 : 667,190.80 = 245,406.40 : x
  2. Step 2: Convert to fraction form
    444,990.40/667,190.80 = 245,406.40/x
  3. Step 3: Cross multiply
    444,990.40x = 667,190.80 × 245,406.40
  4. Step 4: Simplify right side
    444,990.40x = 163,732,892,341.12
  5. Step 5: Solve for x
    x = 163,732,892,341.12/444,990.40
  6. Step 6: Final answer
    x = 367,947.02

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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.