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Finding the Fourth Proportional to 356,087.82, 491,400.42 and 194,941.56

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Solution

The fourth proportional to 356,087.82, 491,400.42 and 194,941.56 is: 269,018.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,087.82 : 491,400.42 = 194,941.56 : x
  2. Step 2: Convert to fraction form
    356,087.82/491,400.42 = 194,941.56/x
  3. Step 3: Cross multiply
    356,087.82x = 491,400.42 × 194,941.56
  4. Step 4: Simplify right side
    356,087.82x = 95,794,364,459.46
  5. Step 5: Solve for x
    x = 95,794,364,459.46/356,087.82
  6. Step 6: Final answer
    x = 269,018.93

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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.