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Finding the Fourth Proportional to 488,872.84, 674,671.38 and 274,081.96

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Solution

The fourth proportional to 488,872.84, 674,671.38 and 274,081.96 is: 378,248.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    488,872.84 : 674,671.38 = 274,081.96 : x
  2. Step 2: Convert to fraction form
    488,872.84/674,671.38 = 274,081.96/x
  3. Step 3: Cross multiply
    488,872.84x = 674,671.38 × 274,081.96
  4. Step 4: Simplify right side
    488,872.84x = 184,915,254,186.31
  5. Step 5: Solve for x
    x = 184,915,254,186.31/488,872.84
  6. Step 6: Final answer
    x = 378,248.16

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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.