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Finding the Fourth Proportional to 492,833.01, 739,340.78 and 155,958.47

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Solution

The fourth proportional to 492,833.01, 739,340.78 and 155,958.47 is: 233,966.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    492,833.01 : 739,340.78 = 155,958.47 : x
  2. Step 2: Convert to fraction form
    492,833.01/739,340.78 = 155,958.47/x
  3. Step 3: Cross multiply
    492,833.01x = 739,340.78 × 155,958.47
  4. Step 4: Simplify right side
    492,833.01x = 115,306,456,857.41
  5. Step 5: Solve for x
    x = 115,306,456,857.41/492,833.01
  6. Step 6: Final answer
    x = 233,966.59

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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.