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Finding the Fourth Proportional to 439,768.67, 606,881.91 and 238,564.67

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Solution

The fourth proportional to 439,768.67, 606,881.91 and 238,564.67 is: 329,219.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,768.67 : 606,881.91 = 238,564.67 : x
  2. Step 2: Convert to fraction form
    439,768.67/606,881.91 = 238,564.67/x
  3. Step 3: Cross multiply
    439,768.67x = 606,881.91 × 238,564.67
  4. Step 4: Simplify right side
    439,768.67x = 144,780,579,553.71
  5. Step 5: Solve for x
    x = 144,780,579,553.71/439,768.67
  6. Step 6: Final answer
    x = 329,219.86

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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.