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Finding the Fourth Proportional to 683,937.86, 943,883.10 and 378,007.65

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Solution

The fourth proportional to 683,937.86, 943,883.10 and 378,007.65 is: 521,677.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    683,937.86 : 943,883.10 = 378,007.65 : x
  2. Step 2: Convert to fraction form
    683,937.86/943,883.10 = 378,007.65/x
  3. Step 3: Cross multiply
    683,937.86x = 943,883.10 × 378,007.65
  4. Step 4: Simplify right side
    683,937.86x = 356,795,032,505.72
  5. Step 5: Solve for x
    x = 356,795,032,505.72/683,937.86
  6. Step 6: Final answer
    x = 521,677.56

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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.