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Finding the Fourth Proportional to 551,395.40, 827,093.10 and 547,458.80

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Solution

The fourth proportional to 551,395.40, 827,093.10 and 547,458.80 is: 821,188.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    551,395.40 : 827,093.10 = 547,458.80 : x
  2. Step 2: Convert to fraction form
    551,395.40/827,093.10 = 547,458.80/x
  3. Step 3: Cross multiply
    551,395.40x = 827,093.10 × 547,458.80
  4. Step 4: Simplify right side
    551,395.40x = 452,799,396,014.28
  5. Step 5: Solve for x
    x = 452,799,396,014.28/551,395.40
  6. Step 6: Final answer
    x = 821,188.20

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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.