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Finding the Fourth Proportional to 455,861.90, 682,808.70 and 296,429.60

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Solution

The fourth proportional to 455,861.90, 682,808.70 and 296,429.60 is: 444,004.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    455,861.90 : 682,808.70 = 296,429.60 : x
  2. Step 2: Convert to fraction form
    455,861.90/682,808.70 = 296,429.60/x
  3. Step 3: Cross multiply
    455,861.90x = 682,808.70 × 296,429.60
  4. Step 4: Simplify right side
    455,861.90x = 202,404,709,817.52
  5. Step 5: Solve for x
    x = 202,404,709,817.52/455,861.90
  6. Step 6: Final answer
    x = 444,004.44

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.