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Finding the Fourth Proportional to 443,365.44, 611,625.09 and 261,989.63

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Solution

The fourth proportional to 443,365.44, 611,625.09 and 261,989.63 is: 361,416.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    443,365.44 : 611,625.09 = 261,989.63 : x
  2. Step 2: Convert to fraction form
    443,365.44/611,625.09 = 261,989.63/x
  3. Step 3: Cross multiply
    443,365.44x = 611,625.09 × 261,989.63
  4. Step 4: Simplify right side
    443,365.44x = 160,239,431,027.82
  5. Step 5: Solve for x
    x = 160,239,431,027.82/443,365.44
  6. Step 6: Final answer
    x = 361,416.15

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1.5x scale

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.