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Finding the Fourth Proportional to 379,580.26, 523,820.67 and 207,498.94

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Solution

The fourth proportional to 379,580.26, 523,820.67 and 207,498.94 is: 286,348.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    379,580.26 : 523,820.67 = 207,498.94 : x
  2. Step 2: Convert to fraction form
    379,580.26/523,820.67 = 207,498.94/x
  3. Step 3: Cross multiply
    379,580.26x = 523,820.67 × 207,498.94
  4. Step 4: Simplify right side
    379,580.26x = 108,692,233,775.09
  5. Step 5: Solve for x
    x = 108,692,233,775.09/379,580.26
  6. Step 6: Final answer
    x = 286,348.49

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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.