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Finding the Fourth Proportional to 555,744.80, 833,617.20 and 200,640.80

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Solution

The fourth proportional to 555,744.80, 833,617.20 and 200,640.80 is: 300,961.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    555,744.80 : 833,617.20 = 200,640.80 : x
  2. Step 2: Convert to fraction form
    555,744.80/833,617.20 = 200,640.80/x
  3. Step 3: Cross multiply
    555,744.80x = 833,617.20 × 200,640.80
  4. Step 4: Simplify right side
    555,744.80x = 167,257,621,901.76
  5. Step 5: Solve for x
    x = 167,257,621,901.76/555,744.80
  6. Step 6: Final answer
    x = 300,961.20

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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.