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Finding the Fourth Proportional to 481,812.40, 722,718.60 and 245,616.40

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Solution

The fourth proportional to 481,812.40, 722,718.60 and 245,616.40 is: 368,424.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    481,812.40 : 722,718.60 = 245,616.40 : x
  2. Step 2: Convert to fraction form
    481,812.40/722,718.60 = 245,616.40/x
  3. Step 3: Cross multiply
    481,812.40x = 722,718.60 × 245,616.40
  4. Step 4: Simplify right side
    481,812.40x = 177,511,540,745.04
  5. Step 5: Solve for x
    x = 177,511,540,745.04/481,812.40
  6. Step 6: Final answer
    x = 368,424.60

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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.