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Finding the Fourth Proportional to 1,907,982, 2,863,285.20 and 786,051

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Solution

The fourth proportional to 1,907,982, 2,863,285.20 and 786,051 is: 1,179,617.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,907,982 : 2,863,285.20 = 786,051 : x
  2. Step 2: Convert to fraction form
    1,907,982/2,863,285.20 = 786,051/x
  3. Step 3: Cross multiply
    1,907,982x = 2,863,285.20 × 786,051
  4. Step 4: Simplify right side
    1,907,982x = 2,250,688,194,745.20
  5. Step 5: Solve for x
    x = 2,250,688,194,745.20/1,907,982
  6. Step 6: Final answer
    x = 1,179,617.10

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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.