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Finding the Fourth Proportional to 1,747,313.33, 2,621,344.23 and 989,512.97

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Solution

The fourth proportional to 1,747,313.33, 2,621,344.23 and 989,512.97 is: 1,484,481.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,747,313.33 : 2,621,344.23 = 989,512.97 : x
  2. Step 2: Convert to fraction form
    1,747,313.33/2,621,344.23 = 989,512.97/x
  3. Step 3: Cross multiply
    1,747,313.33x = 2,621,344.23 × 989,512.97
  4. Step 4: Simplify right side
    1,747,313.33x = 2,593,854,101,312.94
  5. Step 5: Solve for x
    x = 2,593,854,101,312.94/1,747,313.33
  6. Step 6: Final answer
    x = 1,484,481.38

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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.