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Finding the Fourth Proportional to 436,896.40, 655,344.60 and 373,910.80

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Solution

The fourth proportional to 436,896.40, 655,344.60 and 373,910.80 is: 560,866.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    436,896.40 : 655,344.60 = 373,910.80 : x
  2. Step 2: Convert to fraction form
    436,896.40/655,344.60 = 373,910.80/x
  3. Step 3: Cross multiply
    436,896.40x = 655,344.60 × 373,910.80
  4. Step 4: Simplify right side
    436,896.40x = 245,040,423,661.68
  5. Step 5: Solve for x
    x = 245,040,423,661.68/436,896.40
  6. Step 6: Final answer
    x = 560,866.20

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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.