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Finding the Fourth Proportional to 967,375.80, 1,451,063.70 and 257,475.60

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Solution

The fourth proportional to 967,375.80, 1,451,063.70 and 257,475.60 is: 386,213.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    967,375.80 : 1,451,063.70 = 257,475.60 : x
  2. Step 2: Convert to fraction form
    967,375.80/1,451,063.70 = 257,475.60/x
  3. Step 3: Cross multiply
    967,375.80x = 1,451,063.70 × 257,475.60
  4. Step 4: Simplify right side
    967,375.80x = 373,613,496,795.72
  5. Step 5: Solve for x
    x = 373,613,496,795.72/967,375.80
  6. Step 6: Final answer
    x = 386,213.40

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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.