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Finding the Fourth Proportional to 379,632.48, 523,878.21 and 226,696.38

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Solution

The fourth proportional to 379,632.48, 523,878.21 and 226,696.38 is: 312,832.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    379,632.48 : 523,878.21 = 226,696.38 : x
  2. Step 2: Convert to fraction form
    379,632.48/523,878.21 = 226,696.38/x
  3. Step 3: Cross multiply
    379,632.48x = 523,878.21 × 226,696.38
  4. Step 4: Simplify right side
    379,632.48x = 118,761,293,767.88
  5. Step 5: Solve for x
    x = 118,761,293,767.88/379,632.48
  6. Step 6: Final answer
    x = 312,832.28

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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.