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Finding the Fourth Proportional to 488,900.58, 674,713.98 and 274,040.70

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Solution

The fourth proportional to 488,900.58, 674,713.98 and 274,040.70 is: 378,193.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    488,900.58 : 674,713.98 = 274,040.70 : x
  2. Step 2: Convert to fraction form
    488,900.58/674,713.98 = 274,040.70/x
  3. Step 3: Cross multiply
    488,900.58x = 674,713.98 × 274,040.70
  4. Step 4: Simplify right side
    488,900.58x = 184,899,091,378.99
  5. Step 5: Solve for x
    x = 184,899,091,378.99/488,900.58
  6. Step 6: Final answer
    x = 378,193.64

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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.