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Finding the Fourth Proportional to 496,624.56, 685,357.36 and 281,773.68

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Solution

The fourth proportional to 496,624.56, 685,357.36 and 281,773.68 is: 388,856.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    496,624.56 : 685,357.36 = 281,773.68 : x
  2. Step 2: Convert to fraction form
    496,624.56/685,357.36 = 281,773.68/x
  3. Step 3: Cross multiply
    496,624.56x = 685,357.36 × 281,773.68
  4. Step 4: Simplify right side
    496,624.56x = 193,115,665,442.29
  5. Step 5: Solve for x
    x = 193,115,665,442.29/496,624.56
  6. Step 6: Final answer
    x = 388,856.45

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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.