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Finding the Fourth Proportional to 447,632.80, 617,761.24 and 246,428.80

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Solution

The fourth proportional to 447,632.80, 617,761.24 and 246,428.80 is: 340,087.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    447,632.80 : 617,761.24 = 246,428.80 : x
  2. Step 2: Convert to fraction form
    447,632.80/617,761.24 = 246,428.80/x
  3. Step 3: Cross multiply
    447,632.80x = 617,761.24 × 246,428.80
  4. Step 4: Simplify right side
    447,632.80x = 152,234,161,059.71
  5. Step 5: Solve for x
    x = 152,234,161,059.71/447,632.80
  6. Step 6: Final answer
    x = 340,087.15

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.