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Finding the Fourth Proportional to 624,780.70, 936,976.95 and 225,369.58

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Solution

The fourth proportional to 624,780.70, 936,976.95 and 225,369.58 is: 337,984.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    624,780.70 : 936,976.95 = 225,369.58 : x
  2. Step 2: Convert to fraction form
    624,780.70/936,976.95 = 225,369.58/x
  3. Step 3: Cross multiply
    624,780.70x = 936,976.95 × 225,369.58
  4. Step 4: Simplify right side
    624,780.70x = 211,166,101,691.18
  5. Step 5: Solve for x
    x = 211,166,101,691.18/624,780.70
  6. Step 6: Final answer
    x = 337,984.35

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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.