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Finding the Third Proportional to 395,895,312 and 869,831,532

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Solution

The third proportional to 395,895,312 and 869,831,532 is: 1,911,128,702.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    395,895,312 : 869,831,532 = 869,831,532 : x
  2. Step 2: Convert to fraction form
    395,895,312/869,831,532 = 869,831,532/x
  3. Step 3: Cross multiply
    395,895,312x = 869,831,532 × 869,831,532
  4. Step 4: Simplify right side
    395,895,312x = 756,606,894,061,467,008
  5. Step 5: Solve for x
    x = 756,606,894,061,467,008/395,895,312
  6. Step 6: Final answer
    x = 1,911,128,702.79

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Why These Related Problems?

These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.