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Finding the Fourth Proportional to 547,755.40, 821,697.10 and 173,816.20

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Solution

The fourth proportional to 547,755.40, 821,697.10 and 173,816.20 is: 260,744.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    547,755.40 : 821,697.10 = 173,816.20 : x
  2. Step 2: Convert to fraction form
    547,755.40/821,697.10 = 173,816.20/x
  3. Step 3: Cross multiply
    547,755.40x = 821,697.10 × 173,816.20
  4. Step 4: Simplify right side
    547,755.40x = 142,824,267,473.02
  5. Step 5: Solve for x
    x = 142,824,267,473.02/547,755.40
  6. Step 6: Final answer
    x = 260,744.61

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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.