Home / 805,640.30-1,111,787.63-443,087.33

Finding the Fourth Proportional to 805,640.30, 1,111,787.63 and 443,087.33

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Solution

The fourth proportional to 805,640.30, 1,111,787.63 and 443,087.33 is: 611,462.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    805,640.30 : 1,111,787.63 = 443,087.33 : x
  2. Step 2: Convert to fraction form
    805,640.30/1,111,787.63 = 443,087.33/x
  3. Step 3: Cross multiply
    805,640.30x = 1,111,787.63 × 443,087.33
  4. Step 4: Simplify right side
    805,640.30x = 492,619,016,390.92
  5. Step 5: Solve for x
    x = 492,619,016,390.92/805,640.30
  6. Step 6: Final answer
    x = 611,462.73

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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.