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Finding the Fourth Proportional to 383,292.60, 525,112.76 and 368,926.98

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Solution

The fourth proportional to 383,292.60, 525,112.76 and 368,926.98 is: 505,431.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    383,292.60 : 525,112.76 = 368,926.98 : x
  2. Step 2: Convert to fraction form
    383,292.60/525,112.76 = 368,926.98/x
  3. Step 3: Cross multiply
    383,292.60x = 525,112.76 × 368,926.98
  4. Step 4: Simplify right side
    383,292.60x = 193,728,264,706.27
  5. Step 5: Solve for x
    x = 193,728,264,706.27/383,292.60
  6. Step 6: Final answer
    x = 505,431.79

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.