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Finding the Fourth Proportional to 591,728.89, 887,817.03 and 355,236.43

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Solution

The fourth proportional to 591,728.89, 887,817.03 and 355,236.43 is: 532,988.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    591,728.89 : 887,817.03 = 355,236.43 : x
  2. Step 2: Convert to fraction form
    591,728.89/887,817.03 = 355,236.43/x
  3. Step 3: Cross multiply
    591,728.89x = 887,817.03 × 355,236.43
  4. Step 4: Simplify right side
    591,728.89x = 315,384,952,230.40
  5. Step 5: Solve for x
    x = 315,384,952,230.40/591,728.89
  6. Step 6: Final answer
    x = 532,988.94

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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.