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Finding the Third Proportional to 538,492,878 and 1,179,137,625.75

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Solution

The third proportional to 538,492,878 and 1,179,137,625.75 is: 2,581,957,157.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    538,492,878 : 1,179,137,625.75 = 1,179,137,625.75 : x
  2. Step 2: Convert to fraction form
    538,492,878/1,179,137,625.75 = 1,179,137,625.75/x
  3. Step 3: Cross multiply
    538,492,878x = 1,179,137,625.75 × 1,179,137,625.75
  4. Step 4: Simplify right side
    538,492,878x = 1,390,365,540,459,346,944
  5. Step 5: Solve for x
    x = 1,390,365,540,459,346,944/538,492,878
  6. Step 6: Final answer
    x = 2,581,957,157.21

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.