Home / 571,821.20-857,512.80-192,640.04

Finding the Fourth Proportional to 571,821.20, 857,512.80 and 192,640.04

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Solution

The fourth proportional to 571,821.20, 857,512.80 and 192,640.04 is: 288,886.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    571,821.20 : 857,512.80 = 192,640.04 : x
  2. Step 2: Convert to fraction form
    571,821.20/857,512.80 = 192,640.04/x
  3. Step 3: Cross multiply
    571,821.20x = 857,512.80 × 192,640.04
  4. Step 4: Simplify right side
    571,821.20x = 165,191,300,092.51
  5. Step 5: Solve for x
    x = 165,191,300,092.51/571,821.20
  6. Step 6: Final answer
    x = 288,886.28

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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.