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Finding the Fourth Proportional to 489,093.68, 674,956.18 and 295,474.47

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Solution

The fourth proportional to 489,093.68, 674,956.18 and 295,474.47 is: 407,758.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    489,093.68 : 674,956.18 = 295,474.47 : x
  2. Step 2: Convert to fraction form
    489,093.68/674,956.18 = 295,474.47/x
  3. Step 3: Cross multiply
    489,093.68x = 674,956.18 × 295,474.47
  4. Step 4: Simplify right side
    489,093.68x = 199,432,321,351.12
  5. Step 5: Solve for x
    x = 199,432,321,351.12/489,093.68
  6. Step 6: Final answer
    x = 407,758.94

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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.