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Finding the Fourth Proportional to 665,771.04, 998,510.40 and 192,353.40

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Solution

The fourth proportional to 665,771.04, 998,510.40 and 192,353.40 is: 288,487.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    665,771.04 : 998,510.40 = 192,353.40 : x
  2. Step 2: Convert to fraction form
    665,771.04/998,510.40 = 192,353.40/x
  3. Step 3: Cross multiply
    665,771.04x = 998,510.40 × 192,353.40
  4. Step 4: Simplify right side
    665,771.04x = 192,066,870,375.36
  5. Step 5: Solve for x
    x = 192,066,870,375.36/665,771.04
  6. Step 6: Final answer
    x = 288,487.87

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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.