Home / 957,865.82-1,321,787.28-528,136.71

Finding the Fourth Proportional to 957,865.82, 1,321,787.28 and 528,136.71

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Solution

The fourth proportional to 957,865.82, 1,321,787.28 and 528,136.71 is: 728,791.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    957,865.82 : 1,321,787.28 = 528,136.71 : x
  2. Step 2: Convert to fraction form
    957,865.82/1,321,787.28 = 528,136.71/x
  3. Step 3: Cross multiply
    957,865.82x = 1,321,787.28 × 528,136.71
  4. Step 4: Simplify right side
    957,865.82x = 698,084,385,379.05
  5. Step 5: Solve for x
    x = 698,084,385,379.05/957,865.82
  6. Step 6: Final answer
    x = 728,791.42

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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.