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Finding the Fourth Proportional to 263,956.80, 395,935.20 and 175,310.40

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Solution

The fourth proportional to 263,956.80, 395,935.20 and 175,310.40 is: 262,965.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    263,956.80 : 395,935.20 = 175,310.40 : x
  2. Step 2: Convert to fraction form
    263,956.80/395,935.20 = 175,310.40/x
  3. Step 3: Cross multiply
    263,956.80x = 395,935.20 × 175,310.40
  4. Step 4: Simplify right side
    263,956.80x = 69,411,558,286.08
  5. Step 5: Solve for x
    x = 69,411,558,286.08/263,956.80
  6. Step 6: Final answer
    x = 262,965.60

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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.