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Finding the Fourth Proportional to 396,030.80, 593,783.80 and 218,622.80

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Solution

The fourth proportional to 396,030.80, 593,783.80 and 218,622.80 is: 327,789.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    396,030.80 : 593,783.80 = 218,622.80 : x
  2. Step 2: Convert to fraction form
    396,030.80/593,783.80 = 218,622.80/x
  3. Step 3: Cross multiply
    396,030.80x = 593,783.80 × 218,622.80
  4. Step 4: Simplify right side
    396,030.80x = 129,814,676,950.64
  5. Step 5: Solve for x
    x = 129,814,676,950.64/396,030.80
  6. Step 6: Final answer
    x = 327,789.35

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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.