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Finding the Fourth Proportional to 496,611.06, 685,338.82 and 281,760.18

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Solution

The fourth proportional to 496,611.06, 685,338.82 and 281,760.18 is: 388,837.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    496,611.06 : 685,338.82 = 281,760.18 : x
  2. Step 2: Convert to fraction form
    496,611.06/685,338.82 = 281,760.18/x
  3. Step 3: Cross multiply
    496,611.06x = 685,338.82 × 281,760.18
  4. Step 4: Simplify right side
    496,611.06x = 193,101,189,284.19
  5. Step 5: Solve for x
    x = 193,101,189,284.19/496,611.06
  6. Step 6: Final answer
    x = 388,837.88

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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.