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Finding the Fourth Proportional to 396,674.64, 546,497.47 and 274,049.55

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Solution

The fourth proportional to 396,674.64, 546,497.47 and 274,049.55 is: 377,557.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    396,674.64 : 546,497.47 = 274,049.55 : x
  2. Step 2: Convert to fraction form
    396,674.64/546,497.47 = 274,049.55/x
  3. Step 3: Cross multiply
    396,674.64x = 546,497.47 × 274,049.55
  4. Step 4: Simplify right side
    396,674.64x = 149,767,387,223.84
  5. Step 5: Solve for x
    x = 149,767,387,223.84/396,674.64
  6. Step 6: Final answer
    x = 377,557.25

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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.