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Finding the Fourth Proportional to 313,702.16, 432,907.82 and 177,761.97

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Solution

The fourth proportional to 313,702.16, 432,907.82 and 177,761.97 is: 245,310.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    313,702.16 : 432,907.82 = 177,761.97 : x
  2. Step 2: Convert to fraction form
    313,702.16/432,907.82 = 177,761.97/x
  3. Step 3: Cross multiply
    313,702.16x = 432,907.82 × 177,761.97
  4. Step 4: Simplify right side
    313,702.16x = 76,954,546,022.80
  5. Step 5: Solve for x
    x = 76,954,546,022.80/313,702.16
  6. Step 6: Final answer
    x = 245,310.86

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1.5x scale

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.