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Finding the Fourth Proportional to 496,790.28, 685,574.82 and 270,435.24

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Solution

The fourth proportional to 496,790.28, 685,574.82 and 270,435.24 is: 373,202.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    496,790.28 : 685,574.82 = 270,435.24 : x
  2. Step 2: Convert to fraction form
    496,790.28/685,574.82 = 270,435.24/x
  3. Step 3: Cross multiply
    496,790.28x = 685,574.82 × 270,435.24
  4. Step 4: Simplify right side
    496,790.28x = 185,403,590,984.66
  5. Step 5: Solve for x
    x = 185,403,590,984.66/496,790.28
  6. Step 6: Final answer
    x = 373,202.94

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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.