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Finding the Fourth Proportional to 613,658.03, 920,631.92 and 192,933.90

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Solution

The fourth proportional to 613,658.03, 920,631.92 and 192,933.90 is: 289,446.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    613,658.03 : 920,631.92 = 192,933.90 : x
  2. Step 2: Convert to fraction form
    613,658.03/920,631.92 = 192,933.90/x
  3. Step 3: Cross multiply
    613,658.03x = 920,631.92 × 192,933.90
  4. Step 4: Simplify right side
    613,658.03x = 177,621,105,825.42
  5. Step 5: Solve for x
    x = 177,621,105,825.42/613,658.03
  6. Step 6: Final answer
    x = 289,446.40

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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.