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Finding the Third Proportional to 856,329 and 1,865,220

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Solution

The third proportional to 856,329 and 1,865,220 is: 4,062,744.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    856,329 : 1,865,220 = 1,865,220 : x
  2. Step 2: Convert to fraction form
    856,329/1,865,220 = 1,865,220/x
  3. Step 3: Cross multiply
    856,329x = 1,865,220 × 1,865,220
  4. Step 4: Simplify right side
    856,329x = 3,479,045,648,400
  5. Step 5: Solve for x
    x = 3,479,045,648,400/856,329
  6. Step 6: Final answer
    x = 4,062,744.17

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.