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Finding the Third Proportional to 368,617,172 and 791,938,120

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Solution

The third proportional to 368,617,172 and 791,938,120 is: 1,701,401,978.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    368,617,172 : 791,938,120 = 791,938,120 : x
  2. Step 2: Convert to fraction form
    368,617,172/791,938,120 = 791,938,120/x
  3. Step 3: Cross multiply
    368,617,172x = 791,938,120 × 791,938,120
  4. Step 4: Simplify right side
    368,617,172x = 627,165,985,909,134,336
  5. Step 5: Solve for x
    x = 627,165,985,909,134,336/368,617,172
  6. Step 6: Final answer
    x = 1,701,401,978.93

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.