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Finding the Third Proportional to 387,028,128 and 835,624,896

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Solution

The third proportional to 387,028,128 and 835,624,896 is: 1,804,181,443.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    387,028,128 : 835,624,896 = 835,624,896 : x
  2. Step 2: Convert to fraction form
    387,028,128/835,624,896 = 835,624,896/x
  3. Step 3: Cross multiply
    387,028,128x = 835,624,896 × 835,624,896
  4. Step 4: Simplify right side
    387,028,128x = 698,268,966,815,010,816
  5. Step 5: Solve for x
    x = 698,268,966,815,010,816/387,028,128
  6. Step 6: Final answer
    x = 1,804,181,443.93

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.