Home / 571,411.26-857,109.60-192,415.50

Finding the Fourth Proportional to 571,411.26, 857,109.60 and 192,415.50

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Solution

The fourth proportional to 571,411.26, 857,109.60 and 192,415.50 is: 288,620.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    571,411.26 : 857,109.60 = 192,415.50 : x
  2. Step 2: Convert to fraction form
    571,411.26/857,109.60 = 192,415.50/x
  3. Step 3: Cross multiply
    571,411.26x = 857,109.60 × 192,415.50
  4. Step 4: Simplify right side
    571,411.26x = 164,921,172,238.80
  5. Step 5: Solve for x
    x = 164,921,172,238.80/571,411.26
  6. Step 6: Final answer
    x = 288,620.80

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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.