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Finding the Fourth Proportional to 297,434.57, 445,210.65 and 190,675.86

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Solution

The fourth proportional to 297,434.57, 445,210.65 and 190,675.86 is: 285,410.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    297,434.57 : 445,210.65 = 190,675.86 : x
  2. Step 2: Convert to fraction form
    297,434.57/445,210.65 = 190,675.86/x
  3. Step 3: Cross multiply
    297,434.57x = 445,210.65 × 190,675.86
  4. Step 4: Simplify right side
    297,434.57x = 84,890,921,900.37
  5. Step 5: Solve for x
    x = 84,890,921,900.37/297,434.57
  6. Step 6: Final answer
    x = 285,410.41

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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.