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Finding the Fourth Proportional to 543,705.34, 815,558.01 and 169,760.38

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Solution

The fourth proportional to 543,705.34, 815,558.01 and 169,760.38 is: 254,640.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    543,705.34 : 815,558.01 = 169,760.38 : x
  2. Step 2: Convert to fraction form
    543,705.34/815,558.01 = 169,760.38/x
  3. Step 3: Cross multiply
    543,705.34x = 815,558.01 × 169,760.38
  4. Step 4: Simplify right side
    543,705.34x = 138,449,437,689.64
  5. Step 5: Solve for x
    x = 138,449,437,689.64/543,705.34
  6. Step 6: Final answer
    x = 254,640.57

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Similar ratio
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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.