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Finding the Fourth Proportional to 1,967,939.96, 2,952,843.06 and 1,170,796.28

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Solution

The fourth proportional to 1,967,939.96, 2,952,843.06 and 1,170,796.28 is: 1,756,749.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,967,939.96 : 2,952,843.06 = 1,170,796.28 : x
  2. Step 2: Convert to fraction form
    1,967,939.96/2,952,843.06 = 1,170,796.28/x
  3. Step 3: Cross multiply
    1,967,939.96x = 2,952,843.06 × 1,170,796.28
  4. Step 4: Simplify right side
    1,967,939.96x = 3,457,177,670,071.82
  5. Step 5: Solve for x
    x = 3,457,177,670,071.82/1,967,939.96
  6. Step 6: Final answer
    x = 1,756,749.57

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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.