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Finding the Fourth Proportional to 3,260,398.92, 4,890,953.09 and 1,210,819.07

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Solution

The fourth proportional to 3,260,398.92, 4,890,953.09 and 1,210,819.07 is: 1,816,360.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,260,398.92 : 4,890,953.09 = 1,210,819.07 : x
  2. Step 2: Convert to fraction form
    3,260,398.92/4,890,953.09 = 1,210,819.07/x
  3. Step 3: Cross multiply
    3,260,398.92x = 4,890,953.09 × 1,210,819.07
  4. Step 4: Simplify right side
    3,260,398.92x = 5,922,059,241,338.57
  5. Step 5: Solve for x
    x = 5,922,059,241,338.57/3,260,398.92
  6. Step 6: Final answer
    x = 1,816,360.32

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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.