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Finding the Fourth Proportional to 496,601.31, 685,325.36 and 281,750.43

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Solution

The fourth proportional to 496,601.31, 685,325.36 and 281,750.43 is: 388,824.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    496,601.31 : 685,325.36 = 281,750.43 : x
  2. Step 2: Convert to fraction form
    496,601.31/685,325.36 = 281,750.43/x
  3. Step 3: Cross multiply
    496,601.31x = 685,325.36 × 281,750.43
  4. Step 4: Simplify right side
    496,601.31x = 193,090,713,461.15
  5. Step 5: Solve for x
    x = 193,090,713,461.15/496,601.31
  6. Step 6: Final answer
    x = 388,824.41

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.