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Finding the Fourth Proportional to 481,111.11, 722,225.70 and 281,574.70

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Solution

The fourth proportional to 481,111.11, 722,225.70 and 281,574.70 is: 422,689.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    481,111.11 : 722,225.70 = 281,574.70 : x
  2. Step 2: Convert to fraction form
    481,111.11/722,225.70 = 281,574.70/x
  3. Step 3: Cross multiply
    481,111.11x = 722,225.70 × 281,574.70
  4. Step 4: Simplify right side
    481,111.11x = 203,360,483,004.23
  5. Step 5: Solve for x
    x = 203,360,483,004.23/481,111.11
  6. Step 6: Final answer
    x = 422,689.23

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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.