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Finding the Fourth Proportional to 322,867.20, 484,300.80 and 252,806.40

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Solution

The fourth proportional to 322,867.20, 484,300.80 and 252,806.40 is: 379,209.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    322,867.20 : 484,300.80 = 252,806.40 : x
  2. Step 2: Convert to fraction form
    322,867.20/484,300.80 = 252,806.40/x
  3. Step 3: Cross multiply
    322,867.20x = 484,300.80 × 252,806.40
  4. Step 4: Simplify right side
    322,867.20x = 122,434,341,765.12
  5. Step 5: Solve for x
    x = 122,434,341,765.12/322,867.20
  6. Step 6: Final answer
    x = 379,209.60

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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.