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Finding the Fourth Proportional to 347,123.16, 479,023.74 and 196,216.92

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Solution

The fourth proportional to 347,123.16, 479,023.74 and 196,216.92 is: 270,775.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,123.16 : 479,023.74 = 196,216.92 : x
  2. Step 2: Convert to fraction form
    347,123.16/479,023.74 = 196,216.92/x
  3. Step 3: Cross multiply
    347,123.16x = 479,023.74 × 196,216.92
  4. Step 4: Simplify right side
    347,123.16x = 93,992,562,869.68
  5. Step 5: Solve for x
    x = 93,992,562,869.68/347,123.16
  6. Step 6: Final answer
    x = 270,775.83

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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.