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Finding the Fourth Proportional to 572,279.53, 858,410.55 and 193,466.36

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Solution

The fourth proportional to 572,279.53, 858,410.55 and 193,466.36 is: 290,196.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    572,279.53 : 858,410.55 = 193,466.36 : x
  2. Step 2: Convert to fraction form
    572,279.53/858,410.55 = 193,466.36/x
  3. Step 3: Cross multiply
    572,279.53x = 858,410.55 × 193,466.36
  4. Step 4: Simplify right side
    572,279.53x = 166,073,560,202.05
  5. Step 5: Solve for x
    x = 166,073,560,202.05/572,279.53
  6. Step 6: Final answer
    x = 290,196.58

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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.