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Finding the Fourth Proportional to 683,668.14, 943,481.10 and 377,764.20

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Solution

The fourth proportional to 683,668.14, 943,481.10 and 377,764.20 is: 521,325.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    683,668.14 : 943,481.10 = 377,764.20 : x
  2. Step 2: Convert to fraction form
    683,668.14/943,481.10 = 377,764.20/x
  3. Step 3: Cross multiply
    683,668.14x = 943,481.10 × 377,764.20
  4. Step 4: Simplify right side
    683,668.14x = 356,413,382,956.62
  5. Step 5: Solve for x
    x = 356,413,382,956.62/683,668.14
  6. Step 6: Final answer
    x = 521,325.13

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.