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Finding the Fourth Proportional to 492,392.48, 738,326.28 and 255,496.64

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Solution

The fourth proportional to 492,392.48, 738,326.28 and 255,496.64 is: 383,108.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    492,392.48 : 738,326.28 = 255,496.64 : x
  2. Step 2: Convert to fraction form
    492,392.48/738,326.28 = 255,496.64/x
  3. Step 3: Cross multiply
    492,392.48x = 738,326.28 × 255,496.64
  4. Step 4: Simplify right side
    492,392.48x = 188,639,883,763.70
  5. Step 5: Solve for x
    x = 188,639,883,763.70/492,392.48
  6. Step 6: Final answer
    x = 383,108.78

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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.