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Finding the Fourth Proportional to 443,698.35, 612,315.92 and 271,612.77

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Solution

The fourth proportional to 443,698.35, 612,315.92 and 271,612.77 is: 374,833.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    443,698.35 : 612,315.92 = 271,612.77 : x
  2. Step 2: Convert to fraction form
    443,698.35/612,315.92 = 271,612.77/x
  3. Step 3: Cross multiply
    443,698.35x = 612,315.92 × 271,612.77
  4. Step 4: Simplify right side
    443,698.35x = 166,312,821,788.24
  5. Step 5: Solve for x
    x = 166,312,821,788.24/443,698.35
  6. Step 6: Final answer
    x = 374,833.09

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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.