Home / 805,768.59-1,111,961.22-443,220.03

Finding the Fourth Proportional to 805,768.59, 1,111,961.22 and 443,220.03

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Solution

The fourth proportional to 805,768.59, 1,111,961.22 and 443,220.03 is: 611,643.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    805,768.59 : 1,111,961.22 = 443,220.03 : x
  2. Step 2: Convert to fraction form
    805,768.59/1,111,961.22 = 443,220.03/x
  3. Step 3: Cross multiply
    805,768.59x = 1,111,961.22 × 443,220.03
  4. Step 4: Simplify right side
    805,768.59x = 492,843,480,497.77
  5. Step 5: Solve for x
    x = 492,843,480,497.77/805,768.59
  6. Step 6: Final answer
    x = 611,643.95

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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.