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Finding the Fourth Proportional to 297,574.10, 446,385.43 and 139,716.44

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Solution

The fourth proportional to 297,574.10, 446,385.43 and 139,716.44 is: 209,586.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    297,574.10 : 446,385.43 = 139,716.44 : x
  2. Step 2: Convert to fraction form
    297,574.10/446,385.43 = 139,716.44/x
  3. Step 3: Cross multiply
    297,574.10x = 446,385.43 × 139,716.44
  4. Step 4: Simplify right side
    297,574.10x = 62,367,383,147.47
  5. Step 5: Solve for x
    x = 62,367,383,147.47/297,574.10
  6. Step 6: Final answer
    x = 209,586.06

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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.