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Finding the Fourth Proportional to 2,631,695.86, 3,631,745.73 and 1,424,471.86

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Solution

The fourth proportional to 2,631,695.86, 3,631,745.73 and 1,424,471.86 is: 1,965,774.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,631,695.86 : 3,631,745.73 = 1,424,471.86 : x
  2. Step 2: Convert to fraction form
    2,631,695.86/3,631,745.73 = 1,424,471.86/x
  3. Step 3: Cross multiply
    2,631,695.86x = 3,631,745.73 × 1,424,471.86
  4. Step 4: Simplify right side
    2,631,695.86x = 5,173,319,595,060.16
  5. Step 5: Solve for x
    x = 5,173,319,595,060.16/2,631,695.86
  6. Step 6: Final answer
    x = 1,965,774.11

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.