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Finding the Fourth Proportional to 617,666.40, 926,568.72 and 196,846.56

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Solution

The fourth proportional to 617,666.40, 926,568.72 and 196,846.56 is: 295,291.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    617,666.40 : 926,568.72 = 196,846.56 : x
  2. Step 2: Convert to fraction form
    617,666.40/926,568.72 = 196,846.56/x
  3. Step 3: Cross multiply
    617,666.40x = 926,568.72 × 196,846.56
  4. Step 4: Simplify right side
    617,666.40x = 182,391,865,135.60
  5. Step 5: Solve for x
    x = 182,391,865,135.60/617,666.40
  6. Step 6: Final answer
    x = 295,291.87

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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.