Home / 715,984.26-987,812.40-443,954.22

Finding the Fourth Proportional to 715,984.26, 987,812.40 and 443,954.22

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Solution

The fourth proportional to 715,984.26, 987,812.40 and 443,954.22 is: 612,504.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    715,984.26 : 987,812.40 = 443,954.22 : x
  2. Step 2: Convert to fraction form
    715,984.26/987,812.40 = 443,954.22/x
  3. Step 3: Cross multiply
    715,984.26x = 987,812.40 × 443,954.22
  4. Step 4: Simplify right side
    715,984.26x = 438,543,483,548.33
  5. Step 5: Solve for x
    x = 438,543,483,548.33/715,984.26
  6. Step 6: Final answer
    x = 612,504.36

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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.