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Finding the Fourth Proportional to 496,486.94, 685,131.50 and 270,133.34

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Solution

The fourth proportional to 496,486.94, 685,131.50 and 270,133.34 is: 372,772.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    496,486.94 : 685,131.50 = 270,133.34 : x
  2. Step 2: Convert to fraction form
    496,486.94/685,131.50 = 270,133.34/x
  3. Step 3: Cross multiply
    496,486.94x = 685,131.50 × 270,133.34
  4. Step 4: Simplify right side
    496,486.94x = 185,076,860,434.21
  5. Step 5: Solve for x
    x = 185,076,860,434.21/496,486.94
  6. Step 6: Final answer
    x = 372,772.87

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.