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Finding the Fourth Proportional to 655,745.68, 983,866.32 and 256,671.60

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Solution

The fourth proportional to 655,745.68, 983,866.32 and 256,671.60 is: 385,104.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    655,745.68 : 983,866.32 = 256,671.60 : x
  2. Step 2: Convert to fraction form
    655,745.68/983,866.32 = 256,671.60/x
  3. Step 3: Cross multiply
    655,745.68x = 983,866.32 × 256,671.60
  4. Step 4: Simplify right side
    655,745.68x = 252,530,542,540.51
  5. Step 5: Solve for x
    x = 252,530,542,540.51/655,745.68
  6. Step 6: Final answer
    x = 385,104.39

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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.