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Finding the Fourth Proportional to 3,908,529.54, 5,863,979.54 and 1,886,396.54

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Solution

The fourth proportional to 3,908,529.54, 5,863,979.54 and 1,886,396.54 is: 2,830,166.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,908,529.54 : 5,863,979.54 = 1,886,396.54 : x
  2. Step 2: Convert to fraction form
    3,908,529.54/5,863,979.54 = 1,886,396.54/x
  3. Step 3: Cross multiply
    3,908,529.54x = 5,863,979.54 × 1,886,396.54
  4. Step 4: Simplify right side
    3,908,529.54x = 11,061,790,690,282.88
  5. Step 5: Solve for x
    x = 11,061,790,690,282.88/3,908,529.54
  6. Step 6: Final answer
    x = 2,830,166.84

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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.