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Finding the Fourth Proportional to 683,645.78, 943,450.20 and 377,741.88

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Solution

The fourth proportional to 683,645.78, 943,450.20 and 377,741.88 is: 521,294.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    683,645.78 : 943,450.20 = 377,741.88 : x
  2. Step 2: Convert to fraction form
    683,645.78/943,450.20 = 377,741.88/x
  3. Step 3: Cross multiply
    683,645.78x = 943,450.20 × 377,741.88
  4. Step 4: Simplify right side
    683,645.78x = 356,380,652,234.38
  5. Step 5: Solve for x
    x = 356,380,652,234.38/683,645.78
  6. Step 6: Final answer
    x = 521,294.31

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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.