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Finding the Third Proportional to 588,392 and 909,215

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Solution

The third proportional to 588,392 and 909,215 is: 1,404,967.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    588,392 : 909,215 = 909,215 : x
  2. Step 2: Convert to fraction form
    588,392/909,215 = 909,215/x
  3. Step 3: Cross multiply
    588,392x = 909,215 × 909,215
  4. Step 4: Simplify right side
    588,392x = 826,671,916,225
  5. Step 5: Solve for x
    x = 826,671,916,225/588,392
  6. Step 6: Final answer
    x = 1,404,967.97

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.