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Finding the Fourth Proportional to 353,785.37, 530,623.65 and 193,940.49

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Solution

The fourth proportional to 353,785.37, 530,623.65 and 193,940.49 is: 290,880.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,785.37 : 530,623.65 = 193,940.49 : x
  2. Step 2: Convert to fraction form
    353,785.37/530,623.65 = 193,940.49/x
  3. Step 3: Cross multiply
    353,785.37x = 530,623.65 × 193,940.49
  4. Step 4: Simplify right side
    353,785.37x = 102,909,413,403.70
  5. Step 5: Solve for x
    x = 102,909,413,403.70/353,785.37
  6. Step 6: Final answer
    x = 290,880.92

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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.