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Finding the Fourth Proportional to 483,280.80, 677,992.80 and 483,280.80

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Solution

The fourth proportional to 483,280.80, 677,992.80 and 483,280.80 is: 677,992.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    483,280.80 : 677,992.80 = 483,280.80 : x
  2. Step 2: Convert to fraction form
    483,280.80/677,992.80 = 483,280.80/x
  3. Step 3: Cross multiply
    483,280.80x = 677,992.80 × 483,280.80
  4. Step 4: Simplify right side
    483,280.80x = 327,660,902,778.24
  5. Step 5: Solve for x
    x = 327,660,902,778.24/483,280.80
  6. Step 6: Final answer
    x = 677,992.80

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.