Home / 925,679.70-1,388,247.39-393,196.50

Finding the Fourth Proportional to 925,679.70, 1,388,247.39 and 393,196.50

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Solution

The fourth proportional to 925,679.70, 1,388,247.39 and 393,196.50 is: 589,679.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    925,679.70 : 1,388,247.39 = 393,196.50 : x
  2. Step 2: Convert to fraction form
    925,679.70/1,388,247.39 = 393,196.50/x
  3. Step 3: Cross multiply
    925,679.70x = 1,388,247.39 × 393,196.50
  4. Step 4: Simplify right side
    925,679.70x = 545,854,014,882.14
  5. Step 5: Solve for x
    x = 545,854,014,882.14/925,679.70
  6. Step 6: Final answer
    x = 589,679.15

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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.