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Finding the Fourth Proportional to 297,098.40, 445,705.20 and 149,354.40

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Solution

The fourth proportional to 297,098.40, 445,705.20 and 149,354.40 is: 224,060.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    297,098.40 : 445,705.20 = 149,354.40 : x
  2. Step 2: Convert to fraction form
    297,098.40/445,705.20 = 149,354.40/x
  3. Step 3: Cross multiply
    297,098.40x = 445,705.20 × 149,354.40
  4. Step 4: Simplify right side
    297,098.40x = 66,568,032,722.88
  5. Step 5: Solve for x
    x = 66,568,032,722.88/297,098.40
  6. Step 6: Final answer
    x = 224,060.56

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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.