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Finding the Fourth Proportional to 3,927,706.72, 5,889,698.64 and 1,368,028.96

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Solution

The fourth proportional to 3,927,706.72, 5,889,698.64 and 1,368,028.96 is: 2,051,395.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,927,706.72 : 5,889,698.64 = 1,368,028.96 : x
  2. Step 2: Convert to fraction form
    3,927,706.72/5,889,698.64 = 1,368,028.96/x
  3. Step 3: Cross multiply
    3,927,706.72x = 5,889,698.64 × 1,368,028.96
  4. Step 4: Simplify right side
    3,927,706.72x = 8,057,278,305,192.61
  5. Step 5: Solve for x
    x = 8,057,278,305,192.61/3,927,706.72
  6. Step 6: Final answer
    x = 2,051,395.10

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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.