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Finding the Fourth Proportional to 331,900.67, 458,095.44 and 211,018.34

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Solution

The fourth proportional to 331,900.67, 458,095.44 and 211,018.34 is: 291,251.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,900.67 : 458,095.44 = 211,018.34 : x
  2. Step 2: Convert to fraction form
    331,900.67/458,095.44 = 211,018.34/x
  3. Step 3: Cross multiply
    331,900.67x = 458,095.44 × 211,018.34
  4. Step 4: Simplify right side
    331,900.67x = 96,666,539,310.37
  5. Step 5: Solve for x
    x = 96,666,539,310.37/331,900.67
  6. Step 6: Final answer
    x = 291,251.41

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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.