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Finding the Fourth Proportional to 451,305.27, 675,881.82 and 261,364.32

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Solution

The fourth proportional to 451,305.27, 675,881.82 and 261,364.32 is: 391,423.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    451,305.27 : 675,881.82 = 261,364.32 : x
  2. Step 2: Convert to fraction form
    451,305.27/675,881.82 = 261,364.32/x
  3. Step 3: Cross multiply
    451,305.27x = 675,881.82 × 261,364.32
  4. Step 4: Simplify right side
    451,305.27x = 176,651,392,284.66
  5. Step 5: Solve for x
    x = 176,651,392,284.66/451,305.27
  6. Step 6: Final answer
    x = 391,423.29

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.