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Finding the Fourth Proportional to 297,460.20, 445,412.70 and 191,706.60

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Solution

The fourth proportional to 297,460.20, 445,412.70 and 191,706.60 is: 287,058.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    297,460.20 : 445,412.70 = 191,706.60 : x
  2. Step 2: Convert to fraction form
    297,460.20/445,412.70 = 191,706.60/x
  3. Step 3: Cross multiply
    297,460.20x = 445,412.70 × 191,706.60
  4. Step 4: Simplify right side
    297,460.20x = 85,388,554,313.82
  5. Step 5: Solve for x
    x = 85,388,554,313.82/297,460.20
  6. Step 6: Final answer
    x = 287,058.75

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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.