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Finding the Fourth Proportional to 647,568.60, 971,352.90 and 204,336.60

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Solution

The fourth proportional to 647,568.60, 971,352.90 and 204,336.60 is: 306,504.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    647,568.60 : 971,352.90 = 204,336.60 : x
  2. Step 2: Convert to fraction form
    647,568.60/971,352.90 = 204,336.60/x
  3. Step 3: Cross multiply
    647,568.60x = 971,352.90 × 204,336.60
  4. Step 4: Simplify right side
    647,568.60x = 198,482,948,986.14
  5. Step 5: Solve for x
    x = 198,482,948,986.14/647,568.60
  6. Step 6: Final answer
    x = 306,504.90

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Similar ratio
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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.