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Finding the Fourth Proportional to 295,810.79, 408,270.17 and 285,969.29

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Solution

The fourth proportional to 295,810.79, 408,270.17 and 285,969.29 is: 394,687.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    295,810.79 : 408,270.17 = 285,969.29 : x
  2. Step 2: Convert to fraction form
    295,810.79/408,270.17 = 285,969.29/x
  3. Step 3: Cross multiply
    295,810.79x = 408,270.17 × 285,969.29
  4. Step 4: Simplify right side
    295,810.79x = 116,752,729,316.65
  5. Step 5: Solve for x
    x = 116,752,729,316.65/295,810.79
  6. Step 6: Final answer
    x = 394,687.20

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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.