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Finding the Fourth Proportional to 674,936.01, 1,013,978.66 and 394,650.09

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Solution

The fourth proportional to 674,936.01, 1,013,978.66 and 394,650.09 is: 592,895.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    674,936.01 : 1,013,978.66 = 394,650.09 : x
  2. Step 2: Convert to fraction form
    674,936.01/1,013,978.66 = 394,650.09/x
  3. Step 3: Cross multiply
    674,936.01x = 1,013,978.66 × 394,650.09
  4. Step 4: Simplify right side
    674,936.01x = 400,166,769,427.08
  5. Step 5: Solve for x
    x = 400,166,769,427.08/674,936.01
  6. Step 6: Final answer
    x = 592,895.86

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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.