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Finding the Fourth Proportional to 317,647.56, 476,484.30 and 80,996.38

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Solution

The fourth proportional to 317,647.56, 476,484.30 and 80,996.38 is: 121,497.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,647.56 : 476,484.30 = 80,996.38 : x
  2. Step 2: Convert to fraction form
    317,647.56/476,484.30 = 80,996.38/x
  3. Step 3: Cross multiply
    317,647.56x = 476,484.30 × 80,996.38
  4. Step 4: Simplify right side
    317,647.56x = 38,593,503,426.83
  5. Step 5: Solve for x
    x = 38,593,503,426.83/317,647.56
  6. Step 6: Final answer
    x = 121,497.87

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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.