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Finding the Fourth Proportional to 488,813.82, 674,589.51 and 274,022.88

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Solution

The fourth proportional to 488,813.82, 674,589.51 and 274,022.88 is: 378,166.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    488,813.82 : 674,589.51 = 274,022.88 : x
  2. Step 2: Convert to fraction form
    488,813.82/674,589.51 = 274,022.88/x
  3. Step 3: Cross multiply
    488,813.82x = 674,589.51 × 274,022.88
  4. Step 4: Simplify right side
    488,813.82x = 184,852,960,347.99
  5. Step 5: Solve for x
    x = 184,852,960,347.99/488,813.82
  6. Step 6: Final answer
    x = 378,166.40

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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.