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Finding the Fourth Proportional to 444,623.66, 667,019.78 and 178,405.16

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Solution

The fourth proportional to 444,623.66, 667,019.78 and 178,405.16 is: 267,641.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    444,623.66 : 667,019.78 = 178,405.16 : x
  2. Step 2: Convert to fraction form
    444,623.66/667,019.78 = 178,405.16/x
  3. Step 3: Cross multiply
    444,623.66x = 667,019.78 × 178,405.16
  4. Step 4: Simplify right side
    444,623.66x = 118,999,770,574.07
  5. Step 5: Solve for x
    x = 118,999,770,574.07/444,623.66
  6. Step 6: Final answer
    x = 267,641.56

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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.