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Finding the Fourth Proportional to 493,840.80, 740,761.20 and 454,960.80

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Solution

The fourth proportional to 493,840.80, 740,761.20 and 454,960.80 is: 682,441.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    493,840.80 : 740,761.20 = 454,960.80 : x
  2. Step 2: Convert to fraction form
    493,840.80/740,761.20 = 454,960.80/x
  3. Step 3: Cross multiply
    493,840.80x = 740,761.20 × 454,960.80
  4. Step 4: Simplify right side
    493,840.80x = 337,017,308,160.96
  5. Step 5: Solve for x
    x = 337,017,308,160.96/493,840.80
  6. Step 6: Final answer
    x = 682,441.20

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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.