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Finding the Fourth Proportional to 396,020.40, 594,030.60 and 146,799.60

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Solution

The fourth proportional to 396,020.40, 594,030.60 and 146,799.60 is: 220,199.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    396,020.40 : 594,030.60 = 146,799.60 : x
  2. Step 2: Convert to fraction form
    396,020.40/594,030.60 = 146,799.60/x
  3. Step 3: Cross multiply
    396,020.40x = 594,030.60 × 146,799.60
  4. Step 4: Simplify right side
    396,020.40x = 87,203,454,467.76
  5. Step 5: Solve for x
    x = 87,203,454,467.76/396,020.40
  6. Step 6: Final answer
    x = 220,199.40

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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.