Home / 628,868.23-867,794.38-356,941.67

Finding the Fourth Proportional to 628,868.23, 867,794.38 and 356,941.67

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Solution

The fourth proportional to 628,868.23, 867,794.38 and 356,941.67 is: 492,554.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    628,868.23 : 867,794.38 = 356,941.67 : x
  2. Step 2: Convert to fraction form
    628,868.23/867,794.38 = 356,941.67/x
  3. Step 3: Cross multiply
    628,868.23x = 867,794.38 × 356,941.67
  4. Step 4: Simplify right side
    628,868.23x = 309,751,969,982.49
  5. Step 5: Solve for x
    x = 309,751,969,982.49/628,868.23
  6. Step 6: Final answer
    x = 492,554.65

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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.