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Finding the Fourth Proportional to 396,510.80, 546,935.88 and 235,251.76

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Solution

The fourth proportional to 396,510.80, 546,935.88 and 235,251.76 is: 324,499.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    396,510.80 : 546,935.88 = 235,251.76 : x
  2. Step 2: Convert to fraction form
    396,510.80/546,935.88 = 235,251.76/x
  3. Step 3: Cross multiply
    396,510.80x = 546,935.88 × 235,251.76
  4. Step 4: Simplify right side
    396,510.80x = 128,667,628,377.15
  5. Step 5: Solve for x
    x = 128,667,628,377.15/396,510.80
  6. Step 6: Final answer
    x = 324,499.68

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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.