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Finding the Fourth Proportional to 396,122.54, 546,718.98 and 235,066.40

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Solution

The fourth proportional to 396,122.54, 546,718.98 and 235,066.40 is: 324,433.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    396,122.54 : 546,718.98 = 235,066.40 : x
  2. Step 2: Convert to fraction form
    396,122.54/546,718.98 = 235,066.40/x
  3. Step 3: Cross multiply
    396,122.54x = 546,718.98 × 235,066.40
  4. Step 4: Simplify right side
    396,122.54x = 128,515,259,706.68
  5. Step 5: Solve for x
    x = 128,515,259,706.68/396,122.54
  6. Step 6: Final answer
    x = 324,433.09

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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.