Home / 411,932.35-617,965.20-127,556.07

Finding the Fourth Proportional to 411,932.35, 617,965.20 and 127,556.07

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Solution

The fourth proportional to 411,932.35, 617,965.20 and 127,556.07 is: 191,354.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    411,932.35 : 617,965.20 = 127,556.07 : x
  2. Step 2: Convert to fraction form
    411,932.35/617,965.20 = 127,556.07/x
  3. Step 3: Cross multiply
    411,932.35x = 617,965.20 × 127,556.07
  4. Step 4: Simplify right side
    411,932.35x = 78,825,208,581.16
  5. Step 5: Solve for x
    x = 78,825,208,581.16/411,932.35
  6. Step 6: Final answer
    x = 191,354.74

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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.