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Finding the Fourth Proportional to 347,808.11, 479,975.18 and 196,905.11

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Solution

The fourth proportional to 347,808.11, 479,975.18 and 196,905.11 is: 271,729.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,808.11 : 479,975.18 = 196,905.11 : x
  2. Step 2: Convert to fraction form
    347,808.11/479,975.18 = 196,905.11/x
  3. Step 3: Cross multiply
    347,808.11x = 479,975.18 × 196,905.11
  4. Step 4: Simplify right side
    347,808.11x = 94,509,562,230.77
  5. Step 5: Solve for x
    x = 94,509,562,230.77/347,808.11
  6. Step 6: Final answer
    x = 271,729.04

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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.