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Finding the Fourth Proportional to 356,148.95, 491,485.43 and 195,003.95

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Solution

The fourth proportional to 356,148.95, 491,485.43 and 195,003.95 is: 269,105.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,148.95 : 491,485.43 = 195,003.95 : x
  2. Step 2: Convert to fraction form
    356,148.95/491,485.43 = 195,003.95/x
  3. Step 3: Cross multiply
    356,148.95x = 491,485.43 × 195,003.95
  4. Step 4: Simplify right side
    356,148.95x = 95,841,598,247.53
  5. Step 5: Solve for x
    x = 95,841,598,247.53/356,148.95
  6. Step 6: Final answer
    x = 269,105.38

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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.