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Finding the Fourth Proportional to 488,222.79, 673,717.73 and 270,418.55

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Solution

The fourth proportional to 488,222.79, 673,717.73 and 270,418.55 is: 373,161.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    488,222.79 : 673,717.73 = 270,418.55 : x
  2. Step 2: Convert to fraction form
    488,222.79/673,717.73 = 270,418.55/x
  3. Step 3: Cross multiply
    488,222.79x = 673,717.73 × 270,418.55
  4. Step 4: Simplify right side
    488,222.79x = 182,185,772,664.14
  5. Step 5: Solve for x
    x = 182,185,772,664.14/488,222.79
  6. Step 6: Final answer
    x = 373,161.14

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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.