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Finding the Fourth Proportional to 488,907.88, 674,697.06 and 274,048.36

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Solution

The fourth proportional to 488,907.88, 674,697.06 and 274,048.36 is: 378,189.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    488,907.88 : 674,697.06 = 274,048.36 : x
  2. Step 2: Convert to fraction form
    488,907.88/674,697.06 = 274,048.36/x
  3. Step 3: Cross multiply
    488,907.88x = 674,697.06 × 274,048.36
  4. Step 4: Simplify right side
    488,907.88x = 184,899,622,789.82
  5. Step 5: Solve for x
    x = 184,899,622,789.82/488,907.88
  6. Step 6: Final answer
    x = 378,189.08

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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.