Home / 1,776,450.78-2,664,651.26-428,601.87

Finding the Fourth Proportional to 1,776,450.78, 2,664,651.26 and 428,601.87

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Solution

The fourth proportional to 1,776,450.78, 2,664,651.26 and 428,601.87 is: 642,896.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,776,450.78 : 2,664,651.26 = 428,601.87 : x
  2. Step 2: Convert to fraction form
    1,776,450.78/2,664,651.26 = 428,601.87/x
  3. Step 3: Cross multiply
    1,776,450.78x = 2,664,651.26 × 428,601.87
  4. Step 4: Simplify right side
    1,776,450.78x = 1,142,074,514,005.36
  5. Step 5: Solve for x
    x = 1,142,074,514,005.36/1,776,450.78
  6. Step 6: Final answer
    x = 642,896.80

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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.