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Finding the Fourth Proportional to 503,691.68, 751,852.31 and 443,906.40

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Solution

The fourth proportional to 503,691.68, 751,852.31 and 443,906.40 is: 662,611.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    503,691.68 : 751,852.31 = 443,906.40 : x
  2. Step 2: Convert to fraction form
    503,691.68/751,852.31 = 443,906.40/x
  3. Step 3: Cross multiply
    503,691.68x = 751,852.31 × 443,906.40
  4. Step 4: Simplify right side
    503,691.68x = 333,752,052,263.78
  5. Step 5: Solve for x
    x = 333,752,052,263.78/503,691.68
  6. Step 6: Final answer
    x = 662,611.80

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.