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Finding the Fourth Proportional to 1,747,769.72, 2,621,796.06 and 485,597.48

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Solution

The fourth proportional to 1,747,769.72, 2,621,796.06 and 485,597.48 is: 728,435.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,747,769.72 : 2,621,796.06 = 485,597.48 : x
  2. Step 2: Convert to fraction form
    1,747,769.72/2,621,796.06 = 485,597.48/x
  3. Step 3: Cross multiply
    1,747,769.72x = 2,621,796.06 × 485,597.48
  4. Step 4: Simplify right side
    1,747,769.72x = 1,273,137,559,809.93
  5. Step 5: Solve for x
    x = 1,273,137,559,809.93/1,747,769.72
  6. Step 6: Final answer
    x = 728,435.53

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.