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Finding the Fourth Proportional to 217,080.80, 325,621.20 and 195,653.60

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Solution

The fourth proportional to 217,080.80, 325,621.20 and 195,653.60 is: 293,480.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,080.80 : 325,621.20 = 195,653.60 : x
  2. Step 2: Convert to fraction form
    217,080.80/325,621.20 = 195,653.60/x
  3. Step 3: Cross multiply
    217,080.80x = 325,621.20 × 195,653.60
  4. Step 4: Simplify right side
    217,080.80x = 63,708,960,016.32
  5. Step 5: Solve for x
    x = 63,708,960,016.32/217,080.80
  6. Step 6: Final answer
    x = 293,480.40

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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.