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Finding the Third Proportional to 401,955,207 and 870,687,519

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Solution

The third proportional to 401,955,207 and 870,687,519 is: 1,886,022,976.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    401,955,207 : 870,687,519 = 870,687,519 : x
  2. Step 2: Convert to fraction form
    401,955,207/870,687,519 = 870,687,519/x
  3. Step 3: Cross multiply
    401,955,207x = 870,687,519 × 870,687,519
  4. Step 4: Simplify right side
    401,955,207x = 758,096,755,742,375,424
  5. Step 5: Solve for x
    x = 758,096,755,742,375,424/401,955,207
  6. Step 6: Final answer
    x = 1,886,022,976.04

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Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.