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Finding the Fourth Proportional to 662,939.73, 994,409.69 and 236,458.31

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Solution

The fourth proportional to 662,939.73, 994,409.69 and 236,458.31 is: 354,687.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    662,939.73 : 994,409.69 = 236,458.31 : x
  2. Step 2: Convert to fraction form
    662,939.73/994,409.69 = 236,458.31/x
  3. Step 3: Cross multiply
    662,939.73x = 994,409.69 × 236,458.31
  4. Step 4: Simplify right side
    662,939.73x = 235,136,434,745.02
  5. Step 5: Solve for x
    x = 235,136,434,745.02/662,939.73
  6. Step 6: Final answer
    x = 354,687.50

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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.