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Finding the Third Proportional to 854,328 and 1,879,188

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Solution

The third proportional to 854,328 and 1,879,188 is: 4,133,479.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    854,328 : 1,879,188 = 1,879,188 : x
  2. Step 2: Convert to fraction form
    854,328/1,879,188 = 1,879,188/x
  3. Step 3: Cross multiply
    854,328x = 1,879,188 × 1,879,188
  4. Step 4: Simplify right side
    854,328x = 3,531,347,539,344
  5. Step 5: Solve for x
    x = 3,531,347,539,344/854,328
  6. Step 6: Final answer
    x = 4,133,479.81

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Why These Related Problems?

These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.