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Finding the Fourth Proportional to 297,982.80, 446,585.40 and 120,344.40

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Solution

The fourth proportional to 297,982.80, 446,585.40 and 120,344.40 is: 180,359.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    297,982.80 : 446,585.40 = 120,344.40 : x
  2. Step 2: Convert to fraction form
    297,982.80/446,585.40 = 120,344.40/x
  3. Step 3: Cross multiply
    297,982.80x = 446,585.40 × 120,344.40
  4. Step 4: Simplify right side
    297,982.80x = 53,744,052,011.76
  5. Step 5: Solve for x
    x = 53,744,052,011.76/297,982.80
  6. Step 6: Final answer
    x = 180,359.58

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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.