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Finding the Third Proportional to 196,299,178 and 412,905,284

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Solution

The third proportional to 196,299,178 and 412,905,284 is: 868,525,152.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    196,299,178 : 412,905,284 = 412,905,284 : x
  2. Step 2: Convert to fraction form
    196,299,178/412,905,284 = 412,905,284/x
  3. Step 3: Cross multiply
    196,299,178x = 412,905,284 × 412,905,284
  4. Step 4: Simplify right side
    196,299,178x = 170,490,773,555,120,640
  5. Step 5: Solve for x
    x = 170,490,773,555,120,640/196,299,178
  6. Step 6: Final answer
    x = 868,525,152.74

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Why These Related Problems?

These problems maintain the same ratio (2.10) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.