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Finding the Fourth Proportional to 444,143.40, 666,020.70 and 177,815.40

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Solution

The fourth proportional to 444,143.40, 666,020.70 and 177,815.40 is: 266,645.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    444,143.40 : 666,020.70 = 177,815.40 : x
  2. Step 2: Convert to fraction form
    444,143.40/666,020.70 = 177,815.40/x
  3. Step 3: Cross multiply
    444,143.40x = 666,020.70 × 177,815.40
  4. Step 4: Simplify right side
    444,143.40x = 118,428,737,178.78
  5. Step 5: Solve for x
    x = 118,428,737,178.78/444,143.40
  6. Step 6: Final answer
    x = 266,645.27

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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.