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Finding the Fourth Proportional to 455,017.44, 682,523.28 and 155,353.44

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Solution

The fourth proportional to 455,017.44, 682,523.28 and 155,353.44 is: 233,029.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    455,017.44 : 682,523.28 = 155,353.44 : x
  2. Step 2: Convert to fraction form
    455,017.44/682,523.28 = 155,353.44/x
  3. Step 3: Cross multiply
    455,017.44x = 682,523.28 × 155,353.44
  4. Step 4: Simplify right side
    455,017.44x = 106,032,339,428.08
  5. Step 5: Solve for x
    x = 106,032,339,428.08/455,017.44
  6. Step 6: Final answer
    x = 233,029.18

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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.