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Finding the Third Proportional to 196,524,274 and 420,655,536

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Solution

The third proportional to 196,524,274 and 420,655,536 is: 900,403,173.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    196,524,274 : 420,655,536 = 420,655,536 : x
  2. Step 2: Convert to fraction form
    196,524,274/420,655,536 = 420,655,536/x
  3. Step 3: Cross multiply
    196,524,274x = 420,655,536 × 420,655,536
  4. Step 4: Simplify right side
    196,524,274x = 176,951,079,967,447,296
  5. Step 5: Solve for x
    x = 176,951,079,967,447,296/196,524,274
  6. Step 6: Final answer
    x = 900,403,173.44

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Why These Related Problems?

These problems maintain the same ratio (2.14) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.