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Finding the Fourth Proportional to 445,000.40, 667,205.40 and 245,416.40

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Solution

The fourth proportional to 445,000.40, 667,205.40 and 245,416.40 is: 367,961.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    445,000.40 : 667,205.40 = 245,416.40 : x
  2. Step 2: Convert to fraction form
    445,000.40/667,205.40 = 245,416.40/x
  3. Step 3: Cross multiply
    445,000.40x = 667,205.40 × 245,416.40
  4. Step 4: Simplify right side
    445,000.40x = 163,743,147,328.56
  5. Step 5: Solve for x
    x = 163,743,147,328.56/445,000.40
  6. Step 6: Final answer
    x = 367,961.80

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.