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Finding the Fourth Proportional to 297,060.40, 445,809.30 and 197,187.40

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Solution

The fourth proportional to 297,060.40, 445,809.30 and 197,187.40 is: 295,926.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    297,060.40 : 445,809.30 = 197,187.40 : x
  2. Step 2: Convert to fraction form
    297,060.40/445,809.30 = 197,187.40/x
  3. Step 3: Cross multiply
    297,060.40x = 445,809.30 × 197,187.40
  4. Step 4: Simplify right side
    297,060.40x = 87,907,976,762.82
  5. Step 5: Solve for x
    x = 87,907,976,762.82/297,060.40
  6. Step 6: Final answer
    x = 295,926.27

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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.