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Finding the Fourth Proportional to 347,554.55, 479,632.56 and 196,651.55

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Solution

The fourth proportional to 347,554.55, 479,632.56 and 196,651.55 is: 271,383.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,554.55 : 479,632.56 = 196,651.55 : x
  2. Step 2: Convert to fraction form
    347,554.55/479,632.56 = 196,651.55/x
  3. Step 3: Cross multiply
    347,554.55x = 479,632.56 × 196,651.55
  4. Step 4: Simplify right side
    347,554.55x = 94,320,485,777.42
  5. Step 5: Solve for x
    x = 94,320,485,777.42/347,554.55
  6. Step 6: Final answer
    x = 271,383.26

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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.