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Finding the Fourth Proportional to 328,624.73, 490,176.03 and 298,352.90

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Solution

The fourth proportional to 328,624.73, 490,176.03 and 298,352.90 is: 445,022.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,624.73 : 490,176.03 = 298,352.90 : x
  2. Step 2: Convert to fraction form
    328,624.73/490,176.03 = 298,352.90/x
  3. Step 3: Cross multiply
    328,624.73x = 490,176.03 × 298,352.90
  4. Step 4: Simplify right side
    328,624.73x = 146,245,440,060.99
  5. Step 5: Solve for x
    x = 146,245,440,060.99/328,624.73
  6. Step 6: Final answer
    x = 445,022.63

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.