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Finding the Fourth Proportional to 644,863.75, 967,294.47 and 171,549.12

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Solution

The fourth proportional to 644,863.75, 967,294.47 and 171,549.12 is: 257,323.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    644,863.75 : 967,294.47 = 171,549.12 : x
  2. Step 2: Convert to fraction form
    644,863.75/967,294.47 = 171,549.12/x
  3. Step 3: Cross multiply
    644,863.75x = 967,294.47 × 171,549.12
  4. Step 4: Simplify right side
    644,863.75x = 165,938,519,380.03
  5. Step 5: Solve for x
    x = 165,938,519,380.03/644,863.75
  6. Step 6: Final answer
    x = 257,323.38

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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.