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Finding the Fourth Proportional to 1,409,601.88, 1,945,249.86 and 797,743.54

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Solution

The fourth proportional to 1,409,601.88, 1,945,249.86 and 797,743.54 is: 1,100,885.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,409,601.88 : 1,945,249.86 = 797,743.54 : x
  2. Step 2: Convert to fraction form
    1,409,601.88/1,945,249.86 = 797,743.54/x
  3. Step 3: Cross multiply
    1,409,601.88x = 1,945,249.86 × 797,743.54
  4. Step 4: Simplify right side
    1,409,601.88x = 1,551,810,509,500.90
  5. Step 5: Solve for x
    x = 1,551,810,509,500.90/1,409,601.88
  6. Step 6: Final answer
    x = 1,100,885.67

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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.