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Finding the Fourth Proportional to 488,517.89, 674,153.69 and 270,740.48

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Solution

The fourth proportional to 488,517.89, 674,153.69 and 270,740.48 is: 373,621.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    488,517.89 : 674,153.69 = 270,740.48 : x
  2. Step 2: Convert to fraction form
    488,517.89/674,153.69 = 270,740.48/x
  3. Step 3: Cross multiply
    488,517.89x = 674,153.69 × 270,740.48
  4. Step 4: Simplify right side
    488,517.89x = 182,520,688,899.90
  5. Step 5: Solve for x
    x = 182,520,688,899.90/488,517.89
  6. Step 6: Final answer
    x = 373,621.30

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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.