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Finding the Fourth Proportional to 331,636.30, 497,454.44 and 82,318.30

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Solution

The fourth proportional to 331,636.30, 497,454.44 and 82,318.30 is: 123,477.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,636.30 : 497,454.44 = 82,318.30 : x
  2. Step 2: Convert to fraction form
    331,636.30/497,454.44 = 82,318.30/x
  3. Step 3: Cross multiply
    331,636.30x = 497,454.44 × 82,318.30
  4. Step 4: Simplify right side
    331,636.30x = 40,949,602,173.02
  5. Step 5: Solve for x
    x = 40,949,602,173.02/331,636.30
  6. Step 6: Final answer
    x = 123,477.44

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Similar ratio
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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.