Home / 1,295,651.30-1,787,986.91-714,879.78

Finding the Fourth Proportional to 1,295,651.30, 1,787,986.91 and 714,879.78

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Solution

The fourth proportional to 1,295,651.30, 1,787,986.91 and 714,879.78 is: 986,527.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,295,651.30 : 1,787,986.91 = 714,879.78 : x
  2. Step 2: Convert to fraction form
    1,295,651.30/1,787,986.91 = 714,879.78/x
  3. Step 3: Cross multiply
    1,295,651.30x = 1,787,986.91 × 714,879.78
  4. Step 4: Simplify right side
    1,295,651.30x = 1,278,195,683,945.93
  5. Step 5: Solve for x
    x = 1,278,195,683,945.93/1,295,651.30
  6. Step 6: Final answer
    x = 986,527.54

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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.