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Finding the Third Proportional to 389,705,868 and 848,015,604

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Solution

The third proportional to 389,705,868 and 848,015,604 is: 1,845,315,977.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,705,868 : 848,015,604 = 848,015,604 : x
  2. Step 2: Convert to fraction form
    389,705,868/848,015,604 = 848,015,604/x
  3. Step 3: Cross multiply
    389,705,868x = 848,015,604 × 848,015,604
  4. Step 4: Simplify right side
    389,705,868x = 719,130,464,627,484,800
  5. Step 5: Solve for x
    x = 719,130,464,627,484,800/389,705,868
  6. Step 6: Final answer
    x = 1,845,315,977.20

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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.