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Finding the Fourth Proportional to 633,997.38, 874,916.58 and 347,519.41

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Solution

The fourth proportional to 633,997.38, 874,916.58 and 347,519.41 is: 479,576.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    633,997.38 : 874,916.58 = 347,519.41 : x
  2. Step 2: Convert to fraction form
    633,997.38/874,916.58 = 347,519.41/x
  3. Step 3: Cross multiply
    633,997.38x = 874,916.58 × 347,519.41
  4. Step 4: Simplify right side
    633,997.38x = 304,050,493,680.82
  5. Step 5: Solve for x
    x = 304,050,493,680.82/633,997.38
  6. Step 6: Final answer
    x = 479,576.90

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Double scale
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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.