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Finding the Fourth Proportional to 624,781.25, 936,977.93 and 225,370.05

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Solution

The fourth proportional to 624,781.25, 936,977.93 and 225,370.05 is: 337,985.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    624,781.25 : 936,977.93 = 225,370.05 : x
  2. Step 2: Convert to fraction form
    624,781.25/936,977.93 = 225,370.05/x
  3. Step 3: Cross multiply
    624,781.25x = 936,977.93 × 225,370.05
  4. Step 4: Simplify right side
    624,781.25x = 211,166,759,137.62
  5. Step 5: Solve for x
    x = 211,166,759,137.62/624,781.25
  6. Step 6: Final answer
    x = 337,985.11

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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.