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Finding the Fourth Proportional to 481,418.84, 722,263.25 and 193,432.70

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Solution

The fourth proportional to 481,418.84, 722,263.25 and 193,432.70 is: 290,203.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    481,418.84 : 722,263.25 = 193,432.70 : x
  2. Step 2: Convert to fraction form
    481,418.84/722,263.25 = 193,432.70/x
  3. Step 3: Cross multiply
    481,418.84x = 722,263.25 × 193,432.70
  4. Step 4: Simplify right side
    481,418.84x = 139,709,330,558.28
  5. Step 5: Solve for x
    x = 139,709,330,558.28/481,418.84
  6. Step 6: Final answer
    x = 290,203.29

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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.