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Finding the Fourth Proportional to 397,317, 595,389.28 and 235,043.22

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Solution

The fourth proportional to 397,317, 595,389.28 and 235,043.22 is: 352,218.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    397,317 : 595,389.28 = 235,043.22 : x
  2. Step 2: Convert to fraction form
    397,317/595,389.28 = 235,043.22/x
  3. Step 3: Cross multiply
    397,317x = 595,389.28 × 235,043.22
  4. Step 4: Simplify right side
    397,317x = 139,942,213,524.68
  5. Step 5: Solve for x
    x = 139,942,213,524.68/397,317
  6. Step 6: Final answer
    x = 352,218.04

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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.