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Finding the Fourth Proportional to 383,288.61, 525,107.27 and 368,922.98

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Solution

The fourth proportional to 383,288.61, 525,107.27 and 368,922.98 is: 505,426.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    383,288.61 : 525,107.27 = 368,922.98 : x
  2. Step 2: Convert to fraction form
    383,288.61/525,107.27 = 368,922.98/x
  3. Step 3: Cross multiply
    383,288.61x = 525,107.27 × 368,922.98
  4. Step 4: Simplify right side
    383,288.61x = 193,724,138,868.07
  5. Step 5: Solve for x
    x = 193,724,138,868.07/383,288.61
  6. Step 6: Final answer
    x = 505,426.29

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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.