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Finding the Fourth Proportional to 496,697.24, 685,443.51 and 281,836.73

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Solution

The fourth proportional to 496,697.24, 685,443.51 and 281,836.73 is: 388,935.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    496,697.24 : 685,443.51 = 281,836.73 : x
  2. Step 2: Convert to fraction form
    496,697.24/685,443.51 = 281,836.73/x
  3. Step 3: Cross multiply
    496,697.24x = 685,443.51 × 281,836.73
  4. Step 4: Simplify right side
    496,697.24x = 193,183,159,171.73
  5. Step 5: Solve for x
    x = 193,183,159,171.73/496,697.24
  6. Step 6: Final answer
    x = 388,935.44

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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.