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Finding the Fourth Proportional to 529,940.88, 731,034.52 and 368,515.68

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Solution

The fourth proportional to 529,940.88, 731,034.52 and 368,515.68 is: 508,354.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    529,940.88 : 731,034.52 = 368,515.68 : x
  2. Step 2: Convert to fraction form
    529,940.88/731,034.52 = 368,515.68/x
  3. Step 3: Cross multiply
    529,940.88x = 731,034.52 × 368,515.68
  4. Step 4: Simplify right side
    529,940.88x = 269,397,683,241.27
  5. Step 5: Solve for x
    x = 269,397,683,241.27/529,940.88
  6. Step 6: Final answer
    x = 508,354.22

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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.