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Finding the Fourth Proportional to 482,620.80, 722,764.80 and 461,625.60

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Solution

The fourth proportional to 482,620.80, 722,764.80 and 461,625.60 is: 691,322.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    482,620.80 : 722,764.80 = 461,625.60 : x
  2. Step 2: Convert to fraction form
    482,620.80/722,764.80 = 461,625.60/x
  3. Step 3: Cross multiply
    482,620.80x = 722,764.80 × 461,625.60
  4. Step 4: Simplify right side
    482,620.80x = 333,646,734,458.88
  5. Step 5: Solve for x
    x = 333,646,734,458.88/482,620.80
  6. Step 6: Final answer
    x = 691,322.74

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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.