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Finding the Fourth Proportional to 513,936, 770,392.08 and 247,620.96

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Solution

The fourth proportional to 513,936, 770,392.08 and 247,620.96 is: 371,184.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    513,936 : 770,392.08 = 247,620.96 : x
  2. Step 2: Convert to fraction form
    513,936/770,392.08 = 247,620.96/x
  3. Step 3: Cross multiply
    513,936x = 770,392.08 × 247,620.96
  4. Step 4: Simplify right side
    513,936x = 190,765,226,426.00
  5. Step 5: Solve for x
    x = 190,765,226,426.00/513,936
  6. Step 6: Final answer
    x = 371,184.79

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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.