Home / 851,786.40-1,277,218.80-353,200.80

Finding the Fourth Proportional to 851,786.40, 1,277,218.80 and 353,200.80

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Solution

The fourth proportional to 851,786.40, 1,277,218.80 and 353,200.80 is: 529,610.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    851,786.40 : 1,277,218.80 = 353,200.80 : x
  2. Step 2: Convert to fraction form
    851,786.40/1,277,218.80 = 353,200.80/x
  3. Step 3: Cross multiply
    851,786.40x = 1,277,218.80 × 353,200.80
  4. Step 4: Simplify right side
    851,786.40x = 451,114,701,935.04
  5. Step 5: Solve for x
    x = 451,114,701,935.04/851,786.40
  6. Step 6: Final answer
    x = 529,610.13

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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.