Home / 693,918.96-957,644.28-421,942.56

Finding the Fourth Proportional to 693,918.96, 957,644.28 and 421,942.56

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Solution

The fourth proportional to 693,918.96, 957,644.28 and 421,942.56 is: 582,302.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    693,918.96 : 957,644.28 = 421,942.56 : x
  2. Step 2: Convert to fraction form
    693,918.96/957,644.28 = 421,942.56/x
  3. Step 3: Cross multiply
    693,918.96x = 957,644.28 × 421,942.56
  4. Step 4: Simplify right side
    693,918.96x = 404,070,879,072.56
  5. Step 5: Solve for x
    x = 404,070,879,072.56/693,918.96
  6. Step 6: Final answer
    x = 582,302.69

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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.