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Finding the Fourth Proportional to 394,258.86, 543,905.55 and 241,303.86

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Solution

The fourth proportional to 394,258.86, 543,905.55 and 241,303.86 is: 332,894.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    394,258.86 : 543,905.55 = 241,303.86 : x
  2. Step 2: Convert to fraction form
    394,258.86/543,905.55 = 241,303.86/x
  3. Step 3: Cross multiply
    394,258.86x = 543,905.55 × 241,303.86
  4. Step 4: Simplify right side
    394,258.86x = 131,246,508,690.42
  5. Step 5: Solve for x
    x = 131,246,508,690.42/394,258.86
  6. Step 6: Final answer
    x = 332,894.25

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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.