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Finding the Fourth Proportional to 463,314.80, 694,972.20 and 130,890.80

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Solution

The fourth proportional to 463,314.80, 694,972.20 and 130,890.80 is: 196,336.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    463,314.80 : 694,972.20 = 130,890.80 : x
  2. Step 2: Convert to fraction form
    463,314.80/694,972.20 = 130,890.80/x
  3. Step 3: Cross multiply
    463,314.80x = 694,972.20 × 130,890.80
  4. Step 4: Simplify right side
    463,314.80x = 90,965,467,235.76
  5. Step 5: Solve for x
    x = 90,965,467,235.76/463,314.80
  6. Step 6: Final answer
    x = 196,336.20

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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.