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Finding the Fourth Proportional to 358,328.55, 494,482.89 and 197,183.49

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Solution

The fourth proportional to 358,328.55, 494,482.89 and 197,183.49 is: 272,107.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,328.55 : 494,482.89 = 197,183.49 : x
  2. Step 2: Convert to fraction form
    358,328.55/494,482.89 = 197,183.49/x
  3. Step 3: Cross multiply
    358,328.55x = 494,482.89 × 197,183.49
  4. Step 4: Simplify right side
    358,328.55x = 97,503,861,995.49
  5. Step 5: Solve for x
    x = 97,503,861,995.49/358,328.55
  6. Step 6: Final answer
    x = 272,107.43

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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.