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Finding the Fourth Proportional to 547,904.86, 821,857.59 and 359,556.77

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Solution

The fourth proportional to 547,904.86, 821,857.59 and 359,556.77 is: 539,335.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    547,904.86 : 821,857.59 = 359,556.77 : x
  2. Step 2: Convert to fraction form
    547,904.86/821,857.59 = 359,556.77/x
  3. Step 3: Cross multiply
    547,904.86x = 821,857.59 × 359,556.77
  4. Step 4: Simplify right side
    547,904.86x = 295,504,462,515.03
  5. Step 5: Solve for x
    x = 295,504,462,515.03/547,904.86
  6. Step 6: Final answer
    x = 539,335.36

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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.