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Finding the Fourth Proportional to 322,485.60, 483,728.40 and 163,053.30

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Solution

The fourth proportional to 322,485.60, 483,728.40 and 163,053.30 is: 244,579.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    322,485.60 : 483,728.40 = 163,053.30 : x
  2. Step 2: Convert to fraction form
    322,485.60/483,728.40 = 163,053.30/x
  3. Step 3: Cross multiply
    322,485.60x = 483,728.40 × 163,053.30
  4. Step 4: Simplify right side
    322,485.60x = 78,873,511,923.72
  5. Step 5: Solve for x
    x = 78,873,511,923.72/322,485.60
  6. Step 6: Final answer
    x = 244,579.95

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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.