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Finding the Fourth Proportional to 573,183.61, 789,626.27 and 400,778.97

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Solution

The fourth proportional to 573,183.61, 789,626.27 and 400,778.97 is: 552,119.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    573,183.61 : 789,626.27 = 400,778.97 : x
  2. Step 2: Convert to fraction form
    573,183.61/789,626.27 = 400,778.97/x
  3. Step 3: Cross multiply
    573,183.61x = 789,626.27 × 400,778.97
  4. Step 4: Simplify right side
    573,183.61x = 316,465,601,171.65
  5. Step 5: Solve for x
    x = 316,465,601,171.65/573,183.61
  6. Step 6: Final answer
    x = 552,119.07

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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.