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Finding the Fourth Proportional to 396,376.26, 546,770.48 and 252,974.67

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Solution

The fourth proportional to 396,376.26, 546,770.48 and 252,974.67 is: 348,959.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    396,376.26 : 546,770.48 = 252,974.67 : x
  2. Step 2: Convert to fraction form
    396,376.26/546,770.48 = 252,974.67/x
  3. Step 3: Cross multiply
    396,376.26x = 546,770.48 × 252,974.67
  4. Step 4: Simplify right side
    396,376.26x = 138,319,081,111.31
  5. Step 5: Solve for x
    x = 138,319,081,111.31/396,376.26
  6. Step 6: Final answer
    x = 348,959.04

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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.