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Finding the Fourth Proportional to 1,907,981.88, 2,863,285.02 and 786,050.88

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Solution

The fourth proportional to 1,907,981.88, 2,863,285.02 and 786,050.88 is: 1,179,616.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,907,981.88 : 2,863,285.02 = 786,050.88 : x
  2. Step 2: Convert to fraction form
    1,907,981.88/2,863,285.02 = 786,050.88/x
  3. Step 3: Cross multiply
    1,907,981.88x = 2,863,285.02 × 786,050.88
  4. Step 4: Simplify right side
    1,907,981.88x = 2,250,687,691,415.14
  5. Step 5: Solve for x
    x = 2,250,687,691,415.14/1,907,981.88
  6. Step 6: Final answer
    x = 1,179,616.91

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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.