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Finding the Fourth Proportional to 444,271.77, 665,803.79 and 187,891.21

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Solution

The fourth proportional to 444,271.77, 665,803.79 and 187,891.21 is: 281,581.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    444,271.77 : 665,803.79 = 187,891.21 : x
  2. Step 2: Convert to fraction form
    444,271.77/665,803.79 = 187,891.21/x
  3. Step 3: Cross multiply
    444,271.77x = 665,803.79 × 187,891.21
  4. Step 4: Simplify right side
    444,271.77x = 125,098,679,725.69
  5. Step 5: Solve for x
    x = 125,098,679,725.69/444,271.77
  6. Step 6: Final answer
    x = 281,581.43

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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.