Home / 805,835.07-1,112,078.88-443,286.81

Finding the Fourth Proportional to 805,835.07, 1,112,078.88 and 443,286.81

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Solution

The fourth proportional to 805,835.07, 1,112,078.88 and 443,286.81 is: 611,750.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    805,835.07 : 1,112,078.88 = 443,286.81 : x
  2. Step 2: Convert to fraction form
    805,835.07/1,112,078.88 = 443,286.81/x
  3. Step 3: Cross multiply
    805,835.07x = 1,112,078.88 × 443,286.81
  4. Step 4: Simplify right side
    805,835.07x = 492,969,899,183.57
  5. Step 5: Solve for x
    x = 492,969,899,183.57/805,835.07
  6. Step 6: Final answer
    x = 611,750.37

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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.