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Finding the Fourth Proportional to 488,306.82, 673,830.74 and 270,500.75

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Solution

The fourth proportional to 488,306.82, 673,830.74 and 270,500.75 is: 373,272.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    488,306.82 : 673,830.74 = 270,500.75 : x
  2. Step 2: Convert to fraction form
    488,306.82/673,830.74 = 270,500.75/x
  3. Step 3: Cross multiply
    488,306.82x = 673,830.74 × 270,500.75
  4. Step 4: Simplify right side
    488,306.82x = 182,271,720,543.06
  5. Step 5: Solve for x
    x = 182,271,720,543.06/488,306.82
  6. Step 6: Final answer
    x = 373,272.94

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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.