Home / 856,853.55-1,285,280.33-719,995.95

Finding the Fourth Proportional to 856,853.55, 1,285,280.33 and 719,995.95

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Solution

The fourth proportional to 856,853.55, 1,285,280.33 and 719,995.95 is: 1,079,993.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    856,853.55 : 1,285,280.33 = 719,995.95 : x
  2. Step 2: Convert to fraction form
    856,853.55/1,285,280.33 = 719,995.95/x
  3. Step 3: Cross multiply
    856,853.55x = 1,285,280.33 × 719,995.95
  4. Step 4: Simplify right side
    856,853.55x = 925,396,628,614.68
  5. Step 5: Solve for x
    x = 925,396,628,614.68/856,853.55
  6. Step 6: Final answer
    x = 1,079,993.93

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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.