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Finding the Fourth Proportional to 358,140.66, 494,223.78 and 196,995.70

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Solution

The fourth proportional to 358,140.66, 494,223.78 and 196,995.70 is: 271,848.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,140.66 : 494,223.78 = 196,995.70 : x
  2. Step 2: Convert to fraction form
    358,140.66/494,223.78 = 196,995.70/x
  3. Step 3: Cross multiply
    358,140.66x = 494,223.78 × 196,995.70
  4. Step 4: Simplify right side
    358,140.66x = 97,359,959,497.75
  5. Step 5: Solve for x
    x = 97,359,959,497.75/358,140.66
  6. Step 6: Final answer
    x = 271,848.38

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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.