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Finding the Fourth Proportional to 572,768.20, 859,144.20 and 193,608.10

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Solution

The fourth proportional to 572,768.20, 859,144.20 and 193,608.10 is: 290,409.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    572,768.20 : 859,144.20 = 193,608.10 : x
  2. Step 2: Convert to fraction form
    572,768.20/859,144.20 = 193,608.10/x
  3. Step 3: Cross multiply
    572,768.20x = 859,144.20 × 193,608.10
  4. Step 4: Simplify right side
    572,768.20x = 166,337,276,188.02
  5. Step 5: Solve for x
    x = 166,337,276,188.02/572,768.20
  6. Step 6: Final answer
    x = 290,409.41

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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.