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Finding the Third Proportional to 920,392 and 1,968,720

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Solution

The third proportional to 920,392 and 1,968,720 is: 4,211,095.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    920,392 : 1,968,720 = 1,968,720 : x
  2. Step 2: Convert to fraction form
    920,392/1,968,720 = 1,968,720/x
  3. Step 3: Cross multiply
    920,392x = 1,968,720 × 1,968,720
  4. Step 4: Simplify right side
    920,392x = 3,875,858,438,400
  5. Step 5: Solve for x
    x = 3,875,858,438,400/920,392
  6. Step 6: Final answer
    x = 4,211,095.31

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Why These Related Problems?

These problems maintain the same ratio (2.14) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.