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Finding the Fourth Proportional to 693,893.44, 957,609.52 and 421,916.30

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Solution

The fourth proportional to 693,893.44, 957,609.52 and 421,916.30 is: 582,266.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    693,893.44 : 957,609.52 = 421,916.30 : x
  2. Step 2: Convert to fraction form
    693,893.44/957,609.52 = 421,916.30/x
  3. Step 3: Cross multiply
    693,893.44x = 957,609.52 × 421,916.30
  4. Step 4: Simplify right side
    693,893.44x = 404,031,065,523.18
  5. Step 5: Solve for x
    x = 404,031,065,523.18/693,893.44
  6. Step 6: Final answer
    x = 582,266.73

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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.