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Finding the Fourth Proportional to 404,676.80, 605,632.80 and 354,910.40

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Solution

The fourth proportional to 404,676.80, 605,632.80 and 354,910.40 is: 531,153.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,676.80 : 605,632.80 = 354,910.40 : x
  2. Step 2: Convert to fraction form
    404,676.80/605,632.80 = 354,910.40/x
  3. Step 3: Cross multiply
    404,676.80x = 605,632.80 × 354,910.40
  4. Step 4: Simplify right side
    404,676.80x = 214,945,379,301.12
  5. Step 5: Solve for x
    x = 214,945,379,301.12/404,676.80
  6. Step 6: Final answer
    x = 531,153.20

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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.