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Finding the Fourth Proportional to 375,331.50, 517,961.12 and 224,428.50

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Solution

The fourth proportional to 375,331.50, 517,961.12 and 224,428.50 is: 309,713.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    375,331.50 : 517,961.12 = 224,428.50 : x
  2. Step 2: Convert to fraction form
    375,331.50/517,961.12 = 224,428.50/x
  3. Step 3: Cross multiply
    375,331.50x = 517,961.12 × 224,428.50
  4. Step 4: Simplify right side
    375,331.50x = 116,245,236,097.78
  5. Step 5: Solve for x
    x = 116,245,236,097.78/375,331.50
  6. Step 6: Final answer
    x = 309,713.51

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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.