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Finding the Fourth Proportional to 445,303.38, 667,938.60 and 192,647.46

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Solution

The fourth proportional to 445,303.38, 667,938.60 and 192,647.46 is: 288,964.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    445,303.38 : 667,938.60 = 192,647.46 : x
  2. Step 2: Convert to fraction form
    445,303.38/667,938.60 = 192,647.46/x
  3. Step 3: Cross multiply
    445,303.38x = 667,938.60 × 192,647.46
  4. Step 4: Simplify right side
    445,303.38x = 128,676,674,725.96
  5. Step 5: Solve for x
    x = 128,676,674,725.96/445,303.38
  6. Step 6: Final answer
    x = 288,964.06

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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.