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Finding the Fourth Proportional to 407,181.63, 610,772.43 and 220,557.63

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Solution

The fourth proportional to 407,181.63, 610,772.43 and 220,557.63 is: 330,836.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    407,181.63 : 610,772.43 = 220,557.63 : x
  2. Step 2: Convert to fraction form
    407,181.63/610,772.43 = 220,557.63/x
  3. Step 3: Cross multiply
    407,181.63x = 610,772.43 × 220,557.63
  4. Step 4: Simplify right side
    407,181.63x = 134,710,519,630.14
  5. Step 5: Solve for x
    x = 134,710,519,630.14/407,181.63
  6. Step 6: Final answer
    x = 330,836.44

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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.