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Finding the Third Proportional to 407,510,169 and 635,479,036

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Solution

The third proportional to 407,510,169 and 635,479,036 is: 990,977,982.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    407,510,169 : 635,479,036 = 635,479,036 : x
  2. Step 2: Convert to fraction form
    407,510,169/635,479,036 = 635,479,036/x
  3. Step 3: Cross multiply
    407,510,169x = 635,479,036 × 635,479,036
  4. Step 4: Simplify right side
    407,510,169x = 403,833,605,195,489,280
  5. Step 5: Solve for x
    x = 403,833,605,195,489,280/407,510,169
  6. Step 6: Final answer
    x = 990,977,982.68

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Why These Related Problems?

These problems maintain the same ratio (1.56) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.