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Finding the Fourth Proportional to 624,562.20, 937,280.70 and 269,830.80

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Solution

The fourth proportional to 624,562.20, 937,280.70 and 269,830.80 is: 404,935.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    624,562.20 : 937,280.70 = 269,830.80 : x
  2. Step 2: Convert to fraction form
    624,562.20/937,280.70 = 269,830.80/x
  3. Step 3: Cross multiply
    624,562.20x = 937,280.70 × 269,830.80
  4. Step 4: Simplify right side
    624,562.20x = 252,907,201,105.56
  5. Step 5: Solve for x
    x = 252,907,201,105.56/624,562.20
  6. Step 6: Final answer
    x = 404,935.17

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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.