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Finding the Fourth Proportional to 571,954.57, 789,322.03 and 342,468.05

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Solution

The fourth proportional to 571,954.57, 789,322.03 and 342,468.05 is: 472,620.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    571,954.57 : 789,322.03 = 342,468.05 : x
  2. Step 2: Convert to fraction form
    571,954.57/789,322.03 = 342,468.05/x
  3. Step 3: Cross multiply
    571,954.57x = 789,322.03 × 342,468.05
  4. Step 4: Simplify right side
    571,954.57x = 270,317,571,633.36
  5. Step 5: Solve for x
    x = 270,317,571,633.36/571,954.57
  6. Step 6: Final answer
    x = 472,620.71

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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.