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Finding the Fourth Proportional to 439,564.20, 659,346.30 and 297,846.60

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Solution

The fourth proportional to 439,564.20, 659,346.30 and 297,846.60 is: 446,769.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,564.20 : 659,346.30 = 297,846.60 : x
  2. Step 2: Convert to fraction form
    439,564.20/659,346.30 = 297,846.60/x
  3. Step 3: Cross multiply
    439,564.20x = 659,346.30 × 297,846.60
  4. Step 4: Simplify right side
    439,564.20x = 196,384,053,677.58
  5. Step 5: Solve for x
    x = 196,384,053,677.58/439,564.20
  6. Step 6: Final answer
    x = 446,769.90

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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.