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Finding the Fourth Proportional to 5,718,886.92, 8,579,990.70 and 2,305,411.92

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Solution

The fourth proportional to 5,718,886.92, 8,579,990.70 and 2,305,411.92 is: 3,458,787.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,718,886.92 : 8,579,990.70 = 2,305,411.92 : x
  2. Step 2: Convert to fraction form
    5,718,886.92/8,579,990.70 = 2,305,411.92/x
  3. Step 3: Cross multiply
    5,718,886.92x = 8,579,990.70 × 2,305,411.92
  4. Step 4: Simplify right side
    5,718,886.92x = 19,780,412,833,269.14
  5. Step 5: Solve for x
    x = 19,780,412,833,269.14/5,718,886.92
  6. Step 6: Final answer
    x = 3,458,787.19

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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.