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Finding the Fourth Proportional to 439,764.54, 606,876.22 and 238,560.54

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Solution

The fourth proportional to 439,764.54, 606,876.22 and 238,560.54 is: 329,214.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,764.54 : 606,876.22 = 238,560.54 : x
  2. Step 2: Convert to fraction form
    439,764.54/606,876.22 = 238,560.54/x
  3. Step 3: Cross multiply
    439,764.54x = 606,876.22 × 238,560.54
  4. Step 4: Simplify right side
    439,764.54x = 144,776,718,756.36
  5. Step 5: Solve for x
    x = 144,776,718,756.36/439,764.54
  6. Step 6: Final answer
    x = 329,214.17

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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.