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Finding the Fourth Proportional to 496,297.80, 744,446.70 and 122,320.80

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Solution

The fourth proportional to 496,297.80, 744,446.70 and 122,320.80 is: 183,481.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    496,297.80 : 744,446.70 = 122,320.80 : x
  2. Step 2: Convert to fraction form
    496,297.80/744,446.70 = 122,320.80/x
  3. Step 3: Cross multiply
    496,297.80x = 744,446.70 × 122,320.80
  4. Step 4: Simplify right side
    496,297.80x = 91,061,315,901.36
  5. Step 5: Solve for x
    x = 91,061,315,901.36/496,297.80
  6. Step 6: Final answer
    x = 183,481.20

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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.