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Finding the Fourth Proportional to 393,091.99, 589,776.34 and 193,552.54

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Solution

The fourth proportional to 393,091.99, 589,776.34 and 193,552.54 is: 290,396.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    393,091.99 : 589,776.34 = 193,552.54 : x
  2. Step 2: Convert to fraction form
    393,091.99/589,776.34 = 193,552.54/x
  3. Step 3: Cross multiply
    393,091.99x = 589,776.34 × 193,552.54
  4. Step 4: Simplify right side
    393,091.99x = 114,152,707,043.49
  5. Step 5: Solve for x
    x = 114,152,707,043.49/393,091.99
  6. Step 6: Final answer
    x = 290,396.93

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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.