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Finding the Fourth Proportional to 376,993.54, 520,077.69 and 334,016.87

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Solution

The fourth proportional to 376,993.54, 520,077.69 and 334,016.87 is: 460,789.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    376,993.54 : 520,077.69 = 334,016.87 : x
  2. Step 2: Convert to fraction form
    376,993.54/520,077.69 = 334,016.87/x
  3. Step 3: Cross multiply
    376,993.54x = 520,077.69 × 334,016.87
  4. Step 4: Simplify right side
    376,993.54x = 173,714,723,470.83
  5. Step 5: Solve for x
    x = 173,714,723,470.83/376,993.54
  6. Step 6: Final answer
    x = 460,789.66

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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.