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Finding the Fourth Proportional to 331,324.66, 457,233.15 and 180,421.66

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Solution

The fourth proportional to 331,324.66, 457,233.15 and 180,421.66 is: 248,984.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,324.66 : 457,233.15 = 180,421.66 : x
  2. Step 2: Convert to fraction form
    331,324.66/457,233.15 = 180,421.66/x
  3. Step 3: Cross multiply
    331,324.66x = 457,233.15 × 180,421.66
  4. Step 4: Simplify right side
    331,324.66x = 82,494,763,930.03
  5. Step 5: Solve for x
    x = 82,494,763,930.03/331,324.66
  6. Step 6: Final answer
    x = 248,984.68

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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.