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Finding the Fourth Proportional to 449,515.58, 620,353.65 and 255,927.13

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Solution

The fourth proportional to 449,515.58, 620,353.65 and 255,927.13 is: 353,192.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    449,515.58 : 620,353.65 = 255,927.13 : x
  2. Step 2: Convert to fraction form
    449,515.58/620,353.65 = 255,927.13/x
  3. Step 3: Cross multiply
    449,515.58x = 620,353.65 × 255,927.13
  4. Step 4: Simplify right side
    449,515.58x = 158,765,327,198.78
  5. Step 5: Solve for x
    x = 158,765,327,198.78/449,515.58
  6. Step 6: Final answer
    x = 353,192.05

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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.