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Finding the Third Proportional to 388,208 and 848,380

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Solution

The third proportional to 388,208 and 848,380 is: 1,854,028.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,208 : 848,380 = 848,380 : x
  2. Step 2: Convert to fraction form
    388,208/848,380 = 848,380/x
  3. Step 3: Cross multiply
    388,208x = 848,380 × 848,380
  4. Step 4: Simplify right side
    388,208x = 719,748,624,400
  5. Step 5: Solve for x
    x = 719,748,624,400/388,208
  6. Step 6: Final answer
    x = 1,854,028.32

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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.