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Finding the Fourth Proportional to 331,399.30, 457,330.98 and 180,496.30

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Solution

The fourth proportional to 331,399.30, 457,330.98 and 180,496.30 is: 249,084.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,399.30 : 457,330.98 = 180,496.30 : x
  2. Step 2: Convert to fraction form
    331,399.30/457,330.98 = 180,496.30/x
  3. Step 3: Cross multiply
    331,399.30x = 457,330.98 × 180,496.30
  4. Step 4: Simplify right side
    331,399.30x = 82,546,549,765.37
  5. Step 5: Solve for x
    x = 82,546,549,765.37/331,399.30
  6. Step 6: Final answer
    x = 249,084.86

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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.