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Finding the Fourth Proportional to 496,696.53, 685,455.84 and 351,761.61

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Solution

The fourth proportional to 496,696.53, 685,455.84 and 351,761.61 is: 485,441.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    496,696.53 : 685,455.84 = 351,761.61 : x
  2. Step 2: Convert to fraction form
    496,696.53/685,455.84 = 351,761.61/x
  3. Step 3: Cross multiply
    496,696.53x = 685,455.84 × 351,761.61
  4. Step 4: Simplify right side
    496,696.53x = 241,117,049,862.30
  5. Step 5: Solve for x
    x = 241,117,049,862.30/496,696.53
  6. Step 6: Final answer
    x = 485,441.38

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1.5x scale

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.