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Finding the Fourth Proportional to 439,955.22, 607,138.18 and 238,751.22

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Solution

The fourth proportional to 439,955.22, 607,138.18 and 238,751.22 is: 329,476.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,955.22 : 607,138.18 = 238,751.22 : x
  2. Step 2: Convert to fraction form
    439,955.22/607,138.18 = 238,751.22/x
  3. Step 3: Cross multiply
    439,955.22x = 607,138.18 × 238,751.22
  4. Step 4: Simplify right side
    439,955.22x = 144,954,981,183.58
  5. Step 5: Solve for x
    x = 144,954,981,183.58/439,955.22
  6. Step 6: Final answer
    x = 329,476.67

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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.