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Finding the Fourth Proportional to 1,659,874.92, 2,290,604.94 and 934,731.60

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Solution

The fourth proportional to 1,659,874.92, 2,290,604.94 and 934,731.60 is: 1,289,916.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,659,874.92 : 2,290,604.94 = 934,731.60 : x
  2. Step 2: Convert to fraction form
    1,659,874.92/2,290,604.94 = 934,731.60/x
  3. Step 3: Cross multiply
    1,659,874.92x = 2,290,604.94 × 934,731.60
  4. Step 4: Simplify right side
    1,659,874.92x = 2,141,100,820,534.10
  5. Step 5: Solve for x
    x = 2,141,100,820,534.10/1,659,874.92
  6. Step 6: Final answer
    x = 1,289,916.97

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.