Home / 738,525.60-1,019,165.09-398,993.85

Finding the Fourth Proportional to 738,525.60, 1,019,165.09 and 398,993.85

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Solution

The fourth proportional to 738,525.60, 1,019,165.09 and 398,993.85 is: 550,611.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    738,525.60 : 1,019,165.09 = 398,993.85 : x
  2. Step 2: Convert to fraction form
    738,525.60/1,019,165.09 = 398,993.85/x
  3. Step 3: Cross multiply
    738,525.60x = 1,019,165.09 × 398,993.85
  4. Step 4: Simplify right side
    738,525.60x = 406,640,601,049.73
  5. Step 5: Solve for x
    x = 406,640,601,049.73/738,525.60
  6. Step 6: Final answer
    x = 550,611.38

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Double scale
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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.