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Finding the Fourth Proportional to 492,115.82, 679,119.84 and 265,761.32

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Solution

The fourth proportional to 492,115.82, 679,119.84 and 265,761.32 is: 366,750.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    492,115.82 : 679,119.84 = 265,761.32 : x
  2. Step 2: Convert to fraction form
    492,115.82/679,119.84 = 265,761.32/x
  3. Step 3: Cross multiply
    492,115.82x = 679,119.84 × 265,761.32
  4. Step 4: Simplify right side
    492,115.82x = 180,483,785,116.59
  5. Step 5: Solve for x
    x = 180,483,785,116.59/492,115.82
  6. Step 6: Final answer
    x = 366,750.63

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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.