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Finding the Third Proportional to 190,996,818 and 409,221,696

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Solution

The third proportional to 190,996,818 and 409,221,696 is: 876,781,080.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,996,818 : 409,221,696 = 409,221,696 : x
  2. Step 2: Convert to fraction form
    190,996,818/409,221,696 = 409,221,696/x
  3. Step 3: Cross multiply
    190,996,818x = 409,221,696 × 409,221,696
  4. Step 4: Simplify right side
    190,996,818x = 167,462,396,477,116,416
  5. Step 5: Solve for x
    x = 167,462,396,477,116,416/190,996,818
  6. Step 6: Final answer
    x = 876,781,080.60

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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.