Home / 738,196.85-1,107,984.11-378,637.65

Finding the Fourth Proportional to 738,196.85, 1,107,984.11 and 378,637.65

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Solution

The fourth proportional to 738,196.85, 1,107,984.11 and 378,637.65 is: 568,309.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    738,196.85 : 1,107,984.11 = 378,637.65 : x
  2. Step 2: Convert to fraction form
    738,196.85/1,107,984.11 = 378,637.65/x
  3. Step 3: Cross multiply
    738,196.85x = 1,107,984.11 × 378,637.65
  4. Step 4: Simplify right side
    738,196.85x = 419,524,497,754.55
  5. Step 5: Solve for x
    x = 419,524,497,754.55/738,196.85
  6. Step 6: Final answer
    x = 568,309.80

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Double scale
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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.