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Finding the Fourth Proportional to 1,764,745.32, 2,647,413.24 and 1,385,650.76

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Solution

The fourth proportional to 1,764,745.32, 2,647,413.24 and 1,385,650.76 is: 2,078,707.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,764,745.32 : 2,647,413.24 = 1,385,650.76 : x
  2. Step 2: Convert to fraction form
    1,764,745.32/2,647,413.24 = 1,385,650.76/x
  3. Step 3: Cross multiply
    1,764,745.32x = 2,647,413.24 × 1,385,650.76
  4. Step 4: Simplify right side
    1,764,745.32x = 3,668,390,168,040.06
  5. Step 5: Solve for x
    x = 3,668,390,168,040.06/1,764,745.32
  6. Step 6: Final answer
    x = 2,078,707.97

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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.