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Finding the Fourth Proportional to 354,325.54, 488,846.56 and 227,071.30

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Solution

The fourth proportional to 354,325.54, 488,846.56 and 227,071.30 is: 313,279.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,325.54 : 488,846.56 = 227,071.30 : x
  2. Step 2: Convert to fraction form
    354,325.54/488,846.56 = 227,071.30/x
  3. Step 3: Cross multiply
    354,325.54x = 488,846.56 × 227,071.30
  4. Step 4: Simplify right side
    354,325.54x = 111,003,023,879.73
  5. Step 5: Solve for x
    x = 111,003,023,879.73/354,325.54
  6. Step 6: Final answer
    x = 313,279.77

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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.