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Finding the Fourth Proportional to 542,922.75, 814,384.13 and 168,945.75

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Solution

The fourth proportional to 542,922.75, 814,384.13 and 168,945.75 is: 253,418.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    542,922.75 : 814,384.13 = 168,945.75 : x
  2. Step 2: Convert to fraction form
    542,922.75/814,384.13 = 168,945.75/x
  3. Step 3: Cross multiply
    542,922.75x = 814,384.13 × 168,945.75
  4. Step 4: Simplify right side
    542,922.75x = 137,586,736,786.22
  5. Step 5: Solve for x
    x = 137,586,736,786.22/542,922.75
  6. Step 6: Final answer
    x = 253,418.63

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Double scale
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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.