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Finding the Fourth Proportional to 331,563.72, 457,557.94 and 180,660.72

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Solution

The fourth proportional to 331,563.72, 457,557.94 and 180,660.72 is: 249,311.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,563.72 : 457,557.94 = 180,660.72 : x
  2. Step 2: Convert to fraction form
    331,563.72/457,557.94 = 180,660.72/x
  3. Step 3: Cross multiply
    331,563.72x = 457,557.94 × 180,660.72
  4. Step 4: Simplify right side
    331,563.72x = 82,662,745,682.56
  5. Step 5: Solve for x
    x = 82,662,745,682.56/331,563.72
  6. Step 6: Final answer
    x = 249,311.79

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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.