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Finding the Fourth Proportional to 397,383.53, 548,403.68 and 227,650.46

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Solution

The fourth proportional to 397,383.53, 548,403.68 and 227,650.46 is: 314,165.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    397,383.53 : 548,403.68 = 227,650.46 : x
  2. Step 2: Convert to fraction form
    397,383.53/548,403.68 = 227,650.46/x
  3. Step 3: Cross multiply
    397,383.53x = 548,403.68 × 227,650.46
  4. Step 4: Simplify right side
    397,383.53x = 124,844,350,250.45
  5. Step 5: Solve for x
    x = 124,844,350,250.45/397,383.53
  6. Step 6: Final answer
    x = 314,165.89

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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.