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Finding the Third Proportional to 655,476 and 1,430,108

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Solution

The third proportional to 655,476 and 1,430,108 is: 3,120,188.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    655,476 : 1,430,108 = 1,430,108 : x
  2. Step 2: Convert to fraction form
    655,476/1,430,108 = 1,430,108/x
  3. Step 3: Cross multiply
    655,476x = 1,430,108 × 1,430,108
  4. Step 4: Simplify right side
    655,476x = 2,045,208,891,664
  5. Step 5: Solve for x
    x = 2,045,208,891,664/655,476
  6. Step 6: Final answer
    x = 3,120,188.83

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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.