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Finding the Fourth Proportional to 481,969.80, 722,954.70 and 369,995.40

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Solution

The fourth proportional to 481,969.80, 722,954.70 and 369,995.40 is: 554,993.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    481,969.80 : 722,954.70 = 369,995.40 : x
  2. Step 2: Convert to fraction form
    481,969.80/722,954.70 = 369,995.40/x
  3. Step 3: Cross multiply
    481,969.80x = 722,954.70 × 369,995.40
  4. Step 4: Simplify right side
    481,969.80x = 267,489,913,408.38
  5. Step 5: Solve for x
    x = 267,489,913,408.38/481,969.80
  6. Step 6: Final answer
    x = 554,993.10

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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.