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Finding the Fourth Proportional to 2,912,566.06, 4,368,845.31 and 782,650.23

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Solution

The fourth proportional to 2,912,566.06, 4,368,845.31 and 782,650.23 is: 1,173,974.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,912,566.06 : 4,368,845.31 = 782,650.23 : x
  2. Step 2: Convert to fraction form
    2,912,566.06/4,368,845.31 = 782,650.23/x
  3. Step 3: Cross multiply
    2,912,566.06x = 4,368,845.31 × 782,650.23
  4. Step 4: Simplify right side
    2,912,566.06x = 3,419,277,786,705.92
  5. Step 5: Solve for x
    x = 3,419,277,786,705.92/2,912,566.06
  6. Step 6: Final answer
    x = 1,173,974.33

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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.