Home / 811,967.73-1,120,517.87-449,416.77

Finding the Fourth Proportional to 811,967.73, 1,120,517.87 and 449,416.77

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Solution

The fourth proportional to 811,967.73, 1,120,517.87 and 449,416.77 is: 620,196.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    811,967.73 : 1,120,517.87 = 449,416.77 : x
  2. Step 2: Convert to fraction form
    811,967.73/1,120,517.87 = 449,416.77/x
  3. Step 3: Cross multiply
    811,967.73x = 1,120,517.87 × 449,416.77
  4. Step 4: Simplify right side
    811,967.73x = 503,579,519,615.60
  5. Step 5: Solve for x
    x = 503,579,519,615.60/811,967.73
  6. Step 6: Final answer
    x = 620,196.47

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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.