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Finding the Fourth Proportional to 358,640.76, 536,632.41 and 263,940.93

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Solution

The fourth proportional to 358,640.76, 536,632.41 and 263,940.93 is: 394,933.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,640.76 : 536,632.41 = 263,940.93 : x
  2. Step 2: Convert to fraction form
    358,640.76/536,632.41 = 263,940.93/x
  3. Step 3: Cross multiply
    358,640.76x = 536,632.41 × 263,940.93
  4. Step 4: Simplify right side
    358,640.76x = 141,639,256,868.65
  5. Step 5: Solve for x
    x = 141,639,256,868.65/358,640.76
  6. Step 6: Final answer
    x = 394,933.51

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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.