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Finding the Fourth Proportional to 350,847.42, 484,390.83 and 243,379.86

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Solution

The fourth proportional to 350,847.42, 484,390.83 and 243,379.86 is: 336,017.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    350,847.42 : 484,390.83 = 243,379.86 : x
  2. Step 2: Convert to fraction form
    350,847.42/484,390.83 = 243,379.86/x
  3. Step 3: Cross multiply
    350,847.42x = 484,390.83 × 243,379.86
  4. Step 4: Simplify right side
    350,847.42x = 117,890,972,390.68
  5. Step 5: Solve for x
    x = 117,890,972,390.68/350,847.42
  6. Step 6: Final answer
    x = 336,017.78

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.