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Finding the Fourth Proportional to 396,483.59, 547,148.12 and 235,370.95

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Solution

The fourth proportional to 396,483.59, 547,148.12 and 235,370.95 is: 324,812.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    396,483.59 : 547,148.12 = 235,370.95 : x
  2. Step 2: Convert to fraction form
    396,483.59/547,148.12 = 235,370.95/x
  3. Step 3: Cross multiply
    396,483.59x = 547,148.12 × 235,370.95
  4. Step 4: Simplify right side
    396,483.59x = 128,782,770,250.39
  5. Step 5: Solve for x
    x = 128,782,770,250.39/396,483.59
  6. Step 6: Final answer
    x = 324,812.36

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.