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Finding the Fourth Proportional to 652,688.70, 978,255.45 and 273,608.70

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Solution

The fourth proportional to 652,688.70, 978,255.45 and 273,608.70 is: 410,087.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    652,688.70 : 978,255.45 = 273,608.70 : x
  2. Step 2: Convert to fraction form
    652,688.70/978,255.45 = 273,608.70/x
  3. Step 3: Cross multiply
    652,688.70x = 978,255.45 × 273,608.70
  4. Step 4: Simplify right side
    652,688.70x = 267,659,201,942.42
  5. Step 5: Solve for x
    x = 267,659,201,942.42/652,688.70
  6. Step 6: Final answer
    x = 410,087.08

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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.