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Finding the Fourth Proportional to 444,834.20, 667,316.10 and 145,328.60

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Solution

The fourth proportional to 444,834.20, 667,316.10 and 145,328.60 is: 218,014.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    444,834.20 : 667,316.10 = 145,328.60 : x
  2. Step 2: Convert to fraction form
    444,834.20/667,316.10 = 145,328.60/x
  3. Step 3: Cross multiply
    444,834.20x = 667,316.10 × 145,328.60
  4. Step 4: Simplify right side
    444,834.20x = 96,980,114,570.46
  5. Step 5: Solve for x
    x = 96,980,114,570.46/444,834.20
  6. Step 6: Final answer
    x = 218,014.07

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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.