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Finding the Third Proportional to 622,216 and 939,040

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Solution

The third proportional to 622,216 and 939,040 is: 1,417,186.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    622,216 : 939,040 = 939,040 : x
  2. Step 2: Convert to fraction form
    622,216/939,040 = 939,040/x
  3. Step 3: Cross multiply
    622,216x = 939,040 × 939,040
  4. Step 4: Simplify right side
    622,216x = 881,796,121,600
  5. Step 5: Solve for x
    x = 881,796,121,600/622,216
  6. Step 6: Final answer
    x = 1,417,186.51

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.