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Finding the Fourth Proportional to 397,222.40, 595,315.20 and 183,965.60

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Solution

The fourth proportional to 397,222.40, 595,315.20 and 183,965.60 is: 275,708.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    397,222.40 : 595,315.20 = 183,965.60 : x
  2. Step 2: Convert to fraction form
    397,222.40/595,315.20 = 183,965.60/x
  3. Step 3: Cross multiply
    397,222.40x = 595,315.20 × 183,965.60
  4. Step 4: Simplify right side
    397,222.40x = 109,517,517,957.12
  5. Step 5: Solve for x
    x = 109,517,517,957.12/397,222.40
  6. Step 6: Final answer
    x = 275,708.31

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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.