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Finding the Fourth Proportional to 1,722,999.43, 2,582,901.69 and 762,943.69

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Solution

The fourth proportional to 1,722,999.43, 2,582,901.69 and 762,943.69 is: 1,143,708.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,722,999.43 : 2,582,901.69 = 762,943.69 : x
  2. Step 2: Convert to fraction form
    1,722,999.43/2,582,901.69 = 762,943.69/x
  3. Step 3: Cross multiply
    1,722,999.43x = 2,582,901.69 × 762,943.69
  4. Step 4: Simplify right side
    1,722,999.43x = 1,970,608,546,275.84
  5. Step 5: Solve for x
    x = 1,970,608,546,275.84/1,722,999.43
  6. Step 6: Final answer
    x = 1,143,708.18

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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.