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Finding the Fourth Proportional to 483,630.80, 726,137.40 and 273,678.80

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Solution

The fourth proportional to 483,630.80, 726,137.40 and 273,678.80 is: 410,909.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    483,630.80 : 726,137.40 = 273,678.80 : x
  2. Step 2: Convert to fraction form
    483,630.80/726,137.40 = 273,678.80/x
  3. Step 3: Cross multiply
    483,630.80x = 726,137.40 × 273,678.80
  4. Step 4: Simplify right side
    483,630.80x = 198,728,412,267.12
  5. Step 5: Solve for x
    x = 198,728,412,267.12/483,630.80
  6. Step 6: Final answer
    x = 410,909.34

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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.