Home / 957,865.31-1,321,786.59-528,136.21

Finding the Fourth Proportional to 957,865.31, 1,321,786.59 and 528,136.21

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Solution

The fourth proportional to 957,865.31, 1,321,786.59 and 528,136.21 is: 728,790.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    957,865.31 : 1,321,786.59 = 528,136.21 : x
  2. Step 2: Convert to fraction form
    957,865.31/1,321,786.59 = 528,136.21/x
  3. Step 3: Cross multiply
    957,865.31x = 1,321,786.59 × 528,136.21
  4. Step 4: Simplify right side
    957,865.31x = 698,083,360,071.42
  5. Step 5: Solve for x
    x = 698,083,360,071.42/957,865.31
  6. Step 6: Final answer
    x = 728,790.73

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1.5x scale

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.