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Finding the Fourth Proportional to 624,638.30, 936,940.43 and 175,362.89

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Solution

The fourth proportional to 624,638.30, 936,940.43 and 175,362.89 is: 263,039.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    624,638.30 : 936,940.43 = 175,362.89 : x
  2. Step 2: Convert to fraction form
    624,638.30/936,940.43 = 175,362.89/x
  3. Step 3: Cross multiply
    624,638.30x = 936,940.43 × 175,362.89
  4. Step 4: Simplify right side
    624,638.30x = 164,304,577,316.35
  5. Step 5: Solve for x
    x = 164,304,577,316.35/624,638.30
  6. Step 6: Final answer
    x = 263,039.55

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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.