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Finding the Fourth Proportional to 331,558.30, 497,009.40 and 162,940.60

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Solution

The fourth proportional to 331,558.30, 497,009.40 and 162,940.60 is: 244,249.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,558.30 : 497,009.40 = 162,940.60 : x
  2. Step 2: Convert to fraction form
    331,558.30/497,009.40 = 162,940.60/x
  3. Step 3: Cross multiply
    331,558.30x = 497,009.40 × 162,940.60
  4. Step 4: Simplify right side
    331,558.30x = 80,983,009,841.64
  5. Step 5: Solve for x
    x = 80,983,009,841.64/331,558.30
  6. Step 6: Final answer
    x = 244,249.68

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.