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Finding the Fourth Proportional to 543,801.60, 815,680.80 and 188,896.32

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Solution

The fourth proportional to 543,801.60, 815,680.80 and 188,896.32 is: 283,336.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    543,801.60 : 815,680.80 = 188,896.32 : x
  2. Step 2: Convert to fraction form
    543,801.60/815,680.80 = 188,896.32/x
  3. Step 3: Cross multiply
    543,801.60x = 815,680.80 × 188,896.32
  4. Step 4: Simplify right side
    543,801.60x = 154,079,101,414.66
  5. Step 5: Solve for x
    x = 154,079,101,414.66/543,801.60
  6. Step 6: Final answer
    x = 283,336.98

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1.5x scale

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.