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Finding the Fourth Proportional to 488,941.84, 674,768.12 and 274,151.04

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Solution

The fourth proportional to 488,941.84, 674,768.12 and 274,151.04 is: 378,344.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    488,941.84 : 674,768.12 = 274,151.04 : x
  2. Step 2: Convert to fraction form
    488,941.84/674,768.12 = 274,151.04/x
  3. Step 3: Cross multiply
    488,941.84x = 674,768.12 × 274,151.04
  4. Step 4: Simplify right side
    488,941.84x = 184,988,381,856.85
  5. Step 5: Solve for x
    x = 184,988,381,856.85/488,941.84
  6. Step 6: Final answer
    x = 378,344.35

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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.