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Finding the Fourth Proportional to 606,990.69, 910,399.63 and 247,318.42

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Solution

The fourth proportional to 606,990.69, 910,399.63 and 247,318.42 is: 370,942.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    606,990.69 : 910,399.63 = 247,318.42 : x
  2. Step 2: Convert to fraction form
    606,990.69/910,399.63 = 247,318.42/x
  3. Step 3: Cross multiply
    606,990.69x = 910,399.63 × 247,318.42
  4. Step 4: Simplify right side
    606,990.69x = 225,158,598,060.19
  5. Step 5: Solve for x
    x = 225,158,598,060.19/606,990.69
  6. Step 6: Final answer
    x = 370,942.42

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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.