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Finding the Fourth Proportional to 572,279.78, 858,410.93 and 193,466.60

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Solution

The fourth proportional to 572,279.78, 858,410.93 and 193,466.60 is: 290,196.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    572,279.78 : 858,410.93 = 193,466.60 : x
  2. Step 2: Convert to fraction form
    572,279.78/858,410.93 = 193,466.60/x
  3. Step 3: Cross multiply
    572,279.78x = 858,410.93 × 193,466.60
  4. Step 4: Simplify right side
    572,279.78x = 166,073,845,208.63
  5. Step 5: Solve for x
    x = 166,073,845,208.63/572,279.78
  6. Step 6: Final answer
    x = 290,196.95

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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.