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Finding the Fourth Proportional to 467,879.34, 645,662.70 and 276,895.92

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Solution

The fourth proportional to 467,879.34, 645,662.70 and 276,895.92 is: 382,109.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    467,879.34 : 645,662.70 = 276,895.92 : x
  2. Step 2: Convert to fraction form
    467,879.34/645,662.70 = 276,895.92/x
  3. Step 3: Cross multiply
    467,879.34x = 645,662.70 × 276,895.92
  4. Step 4: Simplify right side
    467,879.34x = 178,781,367,326.18
  5. Step 5: Solve for x
    x = 178,781,367,326.18/467,879.34
  6. Step 6: Final answer
    x = 382,109.98

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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.