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Finding the Fourth Proportional to 397,474.30, 596,466.60 and 220,108.60

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Solution

The fourth proportional to 397,474.30, 596,466.60 and 220,108.60 is: 330,304.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    397,474.30 : 596,466.60 = 220,108.60 : x
  2. Step 2: Convert to fraction form
    397,474.30/596,466.60 = 220,108.60/x
  3. Step 3: Cross multiply
    397,474.30x = 596,466.60 × 220,108.60
  4. Step 4: Simplify right side
    397,474.30x = 131,287,428,272.76
  5. Step 5: Solve for x
    x = 131,287,428,272.76/397,474.30
  6. Step 6: Final answer
    x = 330,304.19

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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.