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Finding the Fourth Proportional to 445,197.40, 667,500.90 and 245,613.40

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Solution

The fourth proportional to 445,197.40, 667,500.90 and 245,613.40 is: 368,257.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    445,197.40 : 667,500.90 = 245,613.40 : x
  2. Step 2: Convert to fraction form
    445,197.40/667,500.90 = 245,613.40/x
  3. Step 3: Cross multiply
    445,197.40x = 667,500.90 × 245,613.40
  4. Step 4: Simplify right side
    445,197.40x = 163,947,165,552.06
  5. Step 5: Solve for x
    x = 163,947,165,552.06/445,197.40
  6. Step 6: Final answer
    x = 368,257.24

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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.