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Finding the Fourth Proportional to 488,934.86, 674,727.95 and 274,074.96

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Solution

The fourth proportional to 488,934.86, 674,727.95 and 274,074.96 is: 378,222.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    488,934.86 : 674,727.95 = 274,074.96 : x
  2. Step 2: Convert to fraction form
    488,934.86/674,727.95 = 274,074.96/x
  3. Step 3: Cross multiply
    488,934.86x = 674,727.95 × 274,074.96
  4. Step 4: Simplify right side
    488,934.86x = 184,926,034,536.76
  5. Step 5: Solve for x
    x = 184,926,034,536.76/488,934.86
  6. Step 6: Final answer
    x = 378,222.24

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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.