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Finding the Fourth Proportional to 402,910.58, 555,989.19 and 233,170.22

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Solution

The fourth proportional to 402,910.58, 555,989.19 and 233,170.22 is: 321,759.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    402,910.58 : 555,989.19 = 233,170.22 : x
  2. Step 2: Convert to fraction form
    402,910.58/555,989.19 = 233,170.22/x
  3. Step 3: Cross multiply
    402,910.58x = 555,989.19 × 233,170.22
  4. Step 4: Simplify right side
    402,910.58x = 129,640,121,749.92
  5. Step 5: Solve for x
    x = 129,640,121,749.92/402,910.58
  6. Step 6: Final answer
    x = 321,759.04

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.