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Finding the Third Proportional to 238,196,159 and 515,963,895

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Solution

The third proportional to 238,196,159 and 515,963,895 is: 1,117,644,978.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,196,159 : 515,963,895 = 515,963,895 : x
  2. Step 2: Convert to fraction form
    238,196,159/515,963,895 = 515,963,895/x
  3. Step 3: Cross multiply
    238,196,159x = 515,963,895 × 515,963,895
  4. Step 4: Simplify right side
    238,196,159x = 266,218,740,943,571,040
  5. Step 5: Solve for x
    x = 266,218,740,943,571,040/238,196,159
  6. Step 6: Final answer
    x = 1,117,644,978.24

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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.