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Finding the Fourth Proportional to 1,579,687.68, 2,368,077.72 and 858,976.44

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Solution

The fourth proportional to 1,579,687.68, 2,368,077.72 and 858,976.44 is: 1,287,674.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,579,687.68 : 2,368,077.72 = 858,976.44 : x
  2. Step 2: Convert to fraction form
    1,579,687.68/2,368,077.72 = 858,976.44/x
  3. Step 3: Cross multiply
    1,579,687.68x = 2,368,077.72 × 858,976.44
  4. Step 4: Simplify right side
    1,579,687.68x = 2,034,122,969,568.92
  5. Step 5: Solve for x
    x = 2,034,122,969,568.92/1,579,687.68
  6. Step 6: Final answer
    x = 1,287,674.14

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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.