Home / 639,545.73-959,318.52-190,273.02

Finding the Fourth Proportional to 639,545.73, 959,318.52 and 190,273.02

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Solution

The fourth proportional to 639,545.73, 959,318.52 and 190,273.02 is: 285,409.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    639,545.73 : 959,318.52 = 190,273.02 : x
  2. Step 2: Convert to fraction form
    639,545.73/959,318.52 = 190,273.02/x
  3. Step 3: Cross multiply
    639,545.73x = 959,318.52 × 190,273.02
  4. Step 4: Simplify right side
    639,545.73x = 182,532,431,942.33
  5. Step 5: Solve for x
    x = 182,532,431,942.33/639,545.73
  6. Step 6: Final answer
    x = 285,409.51

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Similar ratio
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1.5x scale

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.