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Finding the Fourth Proportional to 616,165.28, 850,308 and 344,233.28

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Solution

The fourth proportional to 616,165.28, 850,308 and 344,233.28 is: 475,041.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    616,165.28 : 850,308 = 344,233.28 : x
  2. Step 2: Convert to fraction form
    616,165.28/850,308 = 344,233.28/x
  3. Step 3: Cross multiply
    616,165.28x = 850,308 × 344,233.28
  4. Step 4: Simplify right side
    616,165.28x = 292,704,311,850.24
  5. Step 5: Solve for x
    x = 292,704,311,850.24/616,165.28
  6. Step 6: Final answer
    x = 475,041.88

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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.