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Finding the Fourth Proportional to 631,589.54, 945,686.64 and 481,113.02

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Solution

The fourth proportional to 631,589.54, 945,686.64 and 481,113.02 is: 720,376.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    631,589.54 : 945,686.64 = 481,113.02 : x
  2. Step 2: Convert to fraction form
    631,589.54/945,686.64 = 481,113.02/x
  3. Step 3: Cross multiply
    631,589.54x = 945,686.64 × 481,113.02
  4. Step 4: Simplify right side
    631,589.54x = 454,982,155,344.05
  5. Step 5: Solve for x
    x = 454,982,155,344.05/631,589.54
  6. Step 6: Final answer
    x = 720,376.33

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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.