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Finding the Fourth Proportional to 1,928,874.93, 2,893,793.60 and 1,361,364.63

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Solution

The fourth proportional to 1,928,874.93, 2,893,793.60 and 1,361,364.63 is: 2,042,386.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,928,874.93 : 2,893,793.60 = 1,361,364.63 : x
  2. Step 2: Convert to fraction form
    1,928,874.93/2,893,793.60 = 1,361,364.63/x
  3. Step 3: Cross multiply
    1,928,874.93x = 2,893,793.60 × 1,361,364.63
  4. Step 4: Simplify right side
    1,928,874.93x = 3,939,508,253,560.37
  5. Step 5: Solve for x
    x = 3,939,508,253,560.37/1,928,874.93
  6. Step 6: Final answer
    x = 2,042,386.57

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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.