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Finding the Fourth Proportional to 341,561.20, 511,650.60 and 193,644.40

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Solution

The fourth proportional to 341,561.20, 511,650.60 and 193,644.40 is: 290,074.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    341,561.20 : 511,650.60 = 193,644.40 : x
  2. Step 2: Convert to fraction form
    341,561.20/511,650.60 = 193,644.40/x
  3. Step 3: Cross multiply
    341,561.20x = 511,650.60 × 193,644.40
  4. Step 4: Simplify right side
    341,561.20x = 99,078,273,446.64
  5. Step 5: Solve for x
    x = 99,078,273,446.64/341,561.20
  6. Step 6: Final answer
    x = 290,074.73

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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.