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Finding the Fourth Proportional to 325,604.80, 488,407.20 and 273,116.80

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Solution

The fourth proportional to 325,604.80, 488,407.20 and 273,116.80 is: 409,675.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    325,604.80 : 488,407.20 = 273,116.80 : x
  2. Step 2: Convert to fraction form
    325,604.80/488,407.20 = 273,116.80/x
  3. Step 3: Cross multiply
    325,604.80x = 488,407.20 × 273,116.80
  4. Step 4: Simplify right side
    325,604.80x = 133,392,211,560.96
  5. Step 5: Solve for x
    x = 133,392,211,560.96/325,604.80
  6. Step 6: Final answer
    x = 409,675.20

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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.