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Finding the Fourth Proportional to 561,229.75, 842,053.77 and 336,751.30

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Solution

The fourth proportional to 561,229.75, 842,053.77 and 336,751.30 is: 505,252.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    561,229.75 : 842,053.77 = 336,751.30 : x
  2. Step 2: Convert to fraction form
    561,229.75/842,053.77 = 336,751.30/x
  3. Step 3: Cross multiply
    561,229.75x = 842,053.77 × 336,751.30
  4. Step 4: Simplify right side
    561,229.75x = 283,562,701,717.40
  5. Step 5: Solve for x
    x = 283,562,701,717.40/561,229.75
  6. Step 6: Final answer
    x = 505,252.44

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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.