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Finding the Fourth Proportional to 331,447.75, 457,397.90 and 180,544.75

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Solution

The fourth proportional to 331,447.75, 457,397.90 and 180,544.75 is: 249,151.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,447.75 : 457,397.90 = 180,544.75 : x
  2. Step 2: Convert to fraction form
    331,447.75/457,397.90 = 180,544.75/x
  3. Step 3: Cross multiply
    331,447.75x = 457,397.90 × 180,544.75
  4. Step 4: Simplify right side
    331,447.75x = 82,580,789,506.03
  5. Step 5: Solve for x
    x = 82,580,789,506.03/331,447.75
  6. Step 6: Final answer
    x = 249,151.76

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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.