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Finding the Fourth Proportional to 396,206.32, 594,307.32 and 129,964.72

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Solution

The fourth proportional to 396,206.32, 594,307.32 and 129,964.72 is: 194,946.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    396,206.32 : 594,307.32 = 129,964.72 : x
  2. Step 2: Convert to fraction form
    396,206.32/594,307.32 = 129,964.72/x
  3. Step 3: Cross multiply
    396,206.32x = 594,307.32 × 129,964.72
  4. Step 4: Simplify right side
    396,206.32x = 77,238,984,437.75
  5. Step 5: Solve for x
    x = 77,238,984,437.75/396,206.32
  6. Step 6: Final answer
    x = 194,946.37

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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.