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Finding the Fourth Proportional to 444,812.40, 667,218.60 and 423,039.60

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Solution

The fourth proportional to 444,812.40, 667,218.60 and 423,039.60 is: 634,559.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    444,812.40 : 667,218.60 = 423,039.60 : x
  2. Step 2: Convert to fraction form
    444,812.40/667,218.60 = 423,039.60/x
  3. Step 3: Cross multiply
    444,812.40x = 667,218.60 × 423,039.60
  4. Step 4: Simplify right side
    444,812.40x = 282,259,889,656.56
  5. Step 5: Solve for x
    x = 282,259,889,656.56/444,812.40
  6. Step 6: Final answer
    x = 634,559.40

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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.