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Finding the Fourth Proportional to 329,753.70, 494,708.54 and 262,539.90

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Solution

The fourth proportional to 329,753.70, 494,708.54 and 262,539.90 is: 393,871.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    329,753.70 : 494,708.54 = 262,539.90 : x
  2. Step 2: Convert to fraction form
    329,753.70/494,708.54 = 262,539.90/x
  3. Step 3: Cross multiply
    329,753.70x = 494,708.54 × 262,539.90
  4. Step 4: Simplify right side
    329,753.70x = 129,880,729,308.05
  5. Step 5: Solve for x
    x = 129,880,729,308.05/329,753.70
  6. Step 6: Final answer
    x = 393,871.94

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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.