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Finding the Fourth Proportional to 496,817.78, 685,697.94 and 292,856.58

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Solution

The fourth proportional to 496,817.78, 685,697.94 and 292,856.58 is: 404,194.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    496,817.78 : 685,697.94 = 292,856.58 : x
  2. Step 2: Convert to fraction form
    496,817.78/685,697.94 = 292,856.58/x
  3. Step 3: Cross multiply
    496,817.78x = 685,697.94 × 292,856.58
  4. Step 4: Simplify right side
    496,817.78x = 200,811,153,621.45
  5. Step 5: Solve for x
    x = 200,811,153,621.45/496,817.78
  6. Step 6: Final answer
    x = 404,194.78

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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.