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Finding the Fourth Proportional to 3,874,932.05, 5,813,711.79 and 1,715,659.82

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Solution

The fourth proportional to 3,874,932.05, 5,813,711.79 and 1,715,659.82 is: 2,574,071.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,874,932.05 : 5,813,711.79 = 1,715,659.82 : x
  2. Step 2: Convert to fraction form
    3,874,932.05/5,813,711.79 = 1,715,659.82/x
  3. Step 3: Cross multiply
    3,874,932.05x = 5,813,711.79 × 1,715,659.82
  4. Step 4: Simplify right side
    3,874,932.05x = 9,974,351,694,094.72
  5. Step 5: Solve for x
    x = 9,974,351,694,094.72/3,874,932.05
  6. Step 6: Final answer
    x = 2,574,071.38

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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.