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Finding the Fourth Proportional to 358,380.66, 494,554.83 and 197,235.60

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Solution

The fourth proportional to 358,380.66, 494,554.83 and 197,235.60 is: 272,179.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,380.66 : 494,554.83 = 197,235.60 : x
  2. Step 2: Convert to fraction form
    358,380.66/494,554.83 = 197,235.60/x
  3. Step 3: Cross multiply
    358,380.66x = 494,554.83 × 197,235.60
  4. Step 4: Simplify right side
    358,380.66x = 97,543,818,627.95
  5. Step 5: Solve for x
    x = 97,543,818,627.95/358,380.66
  6. Step 6: Final answer
    x = 272,179.36

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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.