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Finding the Fourth Proportional to 358,115.63, 494,208.91 and 196,974.90

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Solution

The fourth proportional to 358,115.63, 494,208.91 and 196,974.90 is: 271,830.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,115.63 : 494,208.91 = 196,974.90 : x
  2. Step 2: Convert to fraction form
    358,115.63/494,208.91 = 196,974.90/x
  3. Step 3: Cross multiply
    358,115.63x = 494,208.91 × 196,974.90
  4. Step 4: Simplify right side
    358,115.63x = 97,346,750,872.58
  5. Step 5: Solve for x
    x = 97,346,750,872.58/358,115.63
  6. Step 6: Final answer
    x = 271,830.50

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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.