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Finding the Third Proportional to 538,436,868.75 and 1,171,212,817.50

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Solution

The third proportional to 538,436,868.75 and 1,171,212,817.50 is: 2,547,632,867.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    538,436,868.75 : 1,171,212,817.50 = 1,171,212,817.50 : x
  2. Step 2: Convert to fraction form
    538,436,868.75/1,171,212,817.50 = 1,171,212,817.50/x
  3. Step 3: Cross multiply
    538,436,868.75x = 1,171,212,817.50 × 1,171,212,817.50
  4. Step 4: Simplify right side
    538,436,868.75x = 1,371,739,463,876,288,256
  5. Step 5: Solve for x
    x = 1,371,739,463,876,288,256/538,436,868.75
  6. Step 6: Final answer
    x = 2,547,632,867.45

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.