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Finding the Fourth Proportional to 550,311.72, 825,467.64 and 363,279.48

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Solution

The fourth proportional to 550,311.72, 825,467.64 and 363,279.48 is: 544,919.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    550,311.72 : 825,467.64 = 363,279.48 : x
  2. Step 2: Convert to fraction form
    550,311.72/825,467.64 = 363,279.48/x
  3. Step 3: Cross multiply
    550,311.72x = 825,467.64 × 363,279.48
  4. Step 4: Simplify right side
    550,311.72x = 299,875,455,016.03
  5. Step 5: Solve for x
    x = 299,875,455,016.03/550,311.72
  6. Step 6: Final answer
    x = 544,919.26

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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.