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Finding the Fourth Proportional to 448,472.67, 621,563.82 and 440,074.59

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Solution

The fourth proportional to 448,472.67, 621,563.82 and 440,074.59 is: 609,924.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    448,472.67 : 621,563.82 = 440,074.59 : x
  2. Step 2: Convert to fraction form
    448,472.67/621,563.82 = 440,074.59/x
  3. Step 3: Cross multiply
    448,472.67x = 621,563.82 × 440,074.59
  4. Step 4: Simplify right side
    448,472.67x = 273,534,443,245.33
  5. Step 5: Solve for x
    x = 273,534,443,245.33/448,472.67
  6. Step 6: Final answer
    x = 609,924.44

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Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.