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Finding the Fourth Proportional to 463,310.40, 694,965.60 and 147,799.20

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Solution

The fourth proportional to 463,310.40, 694,965.60 and 147,799.20 is: 221,698.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    463,310.40 : 694,965.60 = 147,799.20 : x
  2. Step 2: Convert to fraction form
    463,310.40/694,965.60 = 147,799.20/x
  3. Step 3: Cross multiply
    463,310.40x = 694,965.60 × 147,799.20
  4. Step 4: Simplify right side
    463,310.40x = 102,715,359,707.52
  5. Step 5: Solve for x
    x = 102,715,359,707.52/463,310.40
  6. Step 6: Final answer
    x = 221,698.80

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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.