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Finding the Fourth Proportional to 489,094.05, 674,956.70 and 295,474.85

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Solution

The fourth proportional to 489,094.05, 674,956.70 and 295,474.85 is: 407,759.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    489,094.05 : 674,956.70 = 295,474.85 : x
  2. Step 2: Convert to fraction form
    489,094.05/674,956.70 = 295,474.85/x
  3. Step 3: Cross multiply
    489,094.05x = 674,956.70 × 295,474.85
  4. Step 4: Simplify right side
    489,094.05x = 199,432,724,836.84
  5. Step 5: Solve for x
    x = 199,432,724,836.84/489,094.05
  6. Step 6: Final answer
    x = 407,759.46

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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.