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Finding the Fourth Proportional to 588,139.20, 883,083.60 and 455,169.60

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Solution

The fourth proportional to 588,139.20, 883,083.60 and 455,169.60 is: 683,431.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    588,139.20 : 883,083.60 = 455,169.60 : x
  2. Step 2: Convert to fraction form
    588,139.20/883,083.60 = 455,169.60/x
  3. Step 3: Cross multiply
    588,139.20x = 883,083.60 × 455,169.60
  4. Step 4: Simplify right side
    588,139.20x = 401,952,808,978.56
  5. Step 5: Solve for x
    x = 401,952,808,978.56/588,139.20
  6. Step 6: Final answer
    x = 683,431.42

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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.