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Finding the Fourth Proportional to 488,814.32, 674,590.20 and 274,023.38

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Solution

The fourth proportional to 488,814.32, 674,590.20 and 274,023.38 is: 378,167.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    488,814.32 : 674,590.20 = 274,023.38 : x
  2. Step 2: Convert to fraction form
    488,814.32/674,590.20 = 274,023.38/x
  3. Step 3: Cross multiply
    488,814.32x = 674,590.20 × 274,023.38
  4. Step 4: Simplify right side
    488,814.32x = 184,853,486,718.88
  5. Step 5: Solve for x
    x = 184,853,486,718.88/488,814.32
  6. Step 6: Final answer
    x = 378,167.09

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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.