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Finding the Fourth Proportional to 496,839.68, 685,638.24 and 270,484.64

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Solution

The fourth proportional to 496,839.68, 685,638.24 and 270,484.64 is: 373,268.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    496,839.68 : 685,638.24 = 270,484.64 : x
  2. Step 2: Convert to fraction form
    496,839.68/685,638.24 = 270,484.64/x
  3. Step 3: Cross multiply
    496,839.68x = 685,638.24 × 270,484.64
  4. Step 4: Simplify right side
    496,839.68x = 185,454,612,516.63
  5. Step 5: Solve for x
    x = 185,454,612,516.63/496,839.68
  6. Step 6: Final answer
    x = 373,268.52

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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.