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Finding the Fourth Proportional to 396,119.76, 546,596.16 and 252,963.60

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Solution

The fourth proportional to 396,119.76, 546,596.16 and 252,963.60 is: 349,058.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    396,119.76 : 546,596.16 = 252,963.60 : x
  2. Step 2: Convert to fraction form
    396,119.76/546,596.16 = 252,963.60/x
  3. Step 3: Cross multiply
    396,119.76x = 546,596.16 × 252,963.60
  4. Step 4: Simplify right side
    396,119.76x = 138,268,932,379.78
  5. Step 5: Solve for x
    x = 138,268,932,379.78/396,119.76
  6. Step 6: Final answer
    x = 349,058.41

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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.