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Finding the Fourth Proportional to 396,321.60, 594,482.40 and 247,022.40

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Solution

The fourth proportional to 396,321.60, 594,482.40 and 247,022.40 is: 370,533.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    396,321.60 : 594,482.40 = 247,022.40 : x
  2. Step 2: Convert to fraction form
    396,321.60/594,482.40 = 247,022.40/x
  3. Step 3: Cross multiply
    396,321.60x = 594,482.40 × 247,022.40
  4. Step 4: Simplify right side
    396,321.60x = 146,850,469,205.76
  5. Step 5: Solve for x
    x = 146,850,469,205.76/396,321.60
  6. Step 6: Final answer
    x = 370,533.60

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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.