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Finding the Fourth Proportional to 616,086.20, 923,135.70 and 349,052.60

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Solution

The fourth proportional to 616,086.20, 923,135.70 and 349,052.60 is: 523,015.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    616,086.20 : 923,135.70 = 349,052.60 : x
  2. Step 2: Convert to fraction form
    616,086.20/923,135.70 = 349,052.60/x
  3. Step 3: Cross multiply
    616,086.20x = 923,135.70 × 349,052.60
  4. Step 4: Simplify right side
    616,086.20x = 322,222,916,237.82
  5. Step 5: Solve for x
    x = 322,222,916,237.82/616,086.20
  6. Step 6: Final answer
    x = 523,015.96

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.