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Finding the Fourth Proportional to 488,474.40, 674,325.54 and 327,434.64

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Solution

The fourth proportional to 488,474.40, 674,325.54 and 327,434.64 is: 452,014.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    488,474.40 : 674,325.54 = 327,434.64 : x
  2. Step 2: Convert to fraction form
    488,474.40/674,325.54 = 327,434.64/x
  3. Step 3: Cross multiply
    488,474.40x = 674,325.54 × 327,434.64
  4. Step 4: Simplify right side
    488,474.40x = 220,797,540,432.71
  5. Step 5: Solve for x
    x = 220,797,540,432.71/488,474.40
  6. Step 6: Final answer
    x = 452,014.56

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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.