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Finding the Fourth Proportional to 617,956.68, 926,186.49 and 262,223.40

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Solution

The fourth proportional to 617,956.68, 926,186.49 and 262,223.40 is: 393,017.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    617,956.68 : 926,186.49 = 262,223.40 : x
  2. Step 2: Convert to fraction form
    617,956.68/926,186.49 = 262,223.40/x
  3. Step 3: Cross multiply
    617,956.68x = 926,186.49 × 262,223.40
  4. Step 4: Simplify right side
    617,956.68x = 242,867,770,441.87
  5. Step 5: Solve for x
    x = 242,867,770,441.87/617,956.68
  6. Step 6: Final answer
    x = 393,017.47

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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.