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Finding the Fourth Proportional to 396,087.40, 593,324.70 and 245,866.60

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Solution

The fourth proportional to 396,087.40, 593,324.70 and 245,866.60 is: 368,299.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    396,087.40 : 593,324.70 = 245,866.60 : x
  2. Step 2: Convert to fraction form
    396,087.40/593,324.70 = 245,866.60/x
  3. Step 3: Cross multiply
    396,087.40x = 593,324.70 × 245,866.60
  4. Step 4: Simplify right side
    396,087.40x = 145,878,726,685.02
  5. Step 5: Solve for x
    x = 145,878,726,685.02/396,087.40
  6. Step 6: Final answer
    x = 368,299.34

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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.