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Finding the Fourth Proportional to 439,336.41, 606,110.95 and 275,896.78

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Solution

The fourth proportional to 439,336.41, 606,110.95 and 275,896.78 is: 380,628.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,336.41 : 606,110.95 = 275,896.78 : x
  2. Step 2: Convert to fraction form
    439,336.41/606,110.95 = 275,896.78/x
  3. Step 3: Cross multiply
    439,336.41x = 606,110.95 × 275,896.78
  4. Step 4: Simplify right side
    439,336.41x = 167,224,061,666.71
  5. Step 5: Solve for x
    x = 167,224,061,666.71/439,336.41
  6. Step 6: Final answer
    x = 380,628.74

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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.