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Finding the Fourth Proportional to 407,650.20, 611,496.60 and 123,333.60

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Solution

The fourth proportional to 407,650.20, 611,496.60 and 123,333.60 is: 185,006.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    407,650.20 : 611,496.60 = 123,333.60 : x
  2. Step 2: Convert to fraction form
    407,650.20/611,496.60 = 123,333.60/x
  3. Step 3: Cross multiply
    407,650.20x = 611,496.60 × 123,333.60
  4. Step 4: Simplify right side
    407,650.20x = 75,418,077,065.76
  5. Step 5: Solve for x
    x = 75,418,077,065.76/407,650.20
  6. Step 6: Final answer
    x = 185,006.84

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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.