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Finding the Third Proportional to 785,655 and 1,201,311

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Solution

The third proportional to 785,655 and 1,201,311 is: 1,836,872.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    785,655 : 1,201,311 = 1,201,311 : x
  2. Step 2: Convert to fraction form
    785,655/1,201,311 = 1,201,311/x
  3. Step 3: Cross multiply
    785,655x = 1,201,311 × 1,201,311
  4. Step 4: Simplify right side
    785,655x = 1,443,148,118,721
  5. Step 5: Solve for x
    x = 1,443,148,118,721/785,655
  6. Step 6: Final answer
    x = 1,836,872.57

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Why These Related Problems?

These problems maintain the same ratio (1.53) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.