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Finding the Fourth Proportional to 467,674.04, 644,959.78 and 306,470.54

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Solution

The fourth proportional to 467,674.04, 644,959.78 and 306,470.54 is: 422,647.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    467,674.04 : 644,959.78 = 306,470.54 : x
  2. Step 2: Convert to fraction form
    467,674.04/644,959.78 = 306,470.54/x
  3. Step 3: Cross multiply
    467,674.04x = 644,959.78 × 306,470.54
  4. Step 4: Simplify right side
    467,674.04x = 197,661,172,054.88
  5. Step 5: Solve for x
    x = 197,661,172,054.88/467,674.04
  6. Step 6: Final answer
    x = 422,647.30

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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.