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Finding the Third Proportional to 622,345.78 and 929,539.55

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Solution

The third proportional to 622,345.78 and 929,539.55 is: 1,388,366.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    622,345.78 : 929,539.55 = 929,539.55 : x
  2. Step 2: Convert to fraction form
    622,345.78/929,539.55 = 929,539.55/x
  3. Step 3: Cross multiply
    622,345.78x = 929,539.55 × 929,539.55
  4. Step 4: Simplify right side
    622,345.78x = 864,043,769,204.58
  5. Step 5: Solve for x
    x = 864,043,769,204.58/622,345.78
  6. Step 6: Final answer
    x = 1,388,366.07

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.