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Finding the Third Proportional to 1,243,263.94 and 1,857,218.63

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Solution

The third proportional to 1,243,263.94 and 1,857,218.63 is: 2,774,359.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,243,263.94 : 1,857,218.63 = 1,857,218.63 : x
  2. Step 2: Convert to fraction form
    1,243,263.94/1,857,218.63 = 1,857,218.63/x
  3. Step 3: Cross multiply
    1,243,263.94x = 1,857,218.63 × 1,857,218.63
  4. Step 4: Simplify right side
    1,243,263.94x = 3,449,261,021,046.89
  5. Step 5: Solve for x
    x = 3,449,261,021,046.89/1,243,263.94
  6. Step 6: Final answer
    x = 2,774,359.42

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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.