Home / 649,188.20-973,782.30-450,122.60

Finding the Fourth Proportional to 649,188.20, 973,782.30 and 450,122.60

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Solution

The fourth proportional to 649,188.20, 973,782.30 and 450,122.60 is: 675,183.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    649,188.20 : 973,782.30 = 450,122.60 : x
  2. Step 2: Convert to fraction form
    649,188.20/973,782.30 = 450,122.60/x
  3. Step 3: Cross multiply
    649,188.20x = 973,782.30 × 450,122.60
  4. Step 4: Simplify right side
    649,188.20x = 438,321,420,709.98
  5. Step 5: Solve for x
    x = 438,321,420,709.98/649,188.20
  6. Step 6: Final answer
    x = 675,183.90

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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.