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Finding the Fourth Proportional to 357,954.70, 535,763.75 and 263,159.80

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Solution

The fourth proportional to 357,954.70, 535,763.75 and 263,159.80 is: 393,880.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    357,954.70 : 535,763.75 = 263,159.80 : x
  2. Step 2: Convert to fraction form
    357,954.70/535,763.75 = 263,159.80/x
  3. Step 3: Cross multiply
    357,954.70x = 535,763.75 × 263,159.80
  4. Step 4: Simplify right side
    357,954.70x = 140,991,481,297.25
  5. Step 5: Solve for x
    x = 140,991,481,297.25/357,954.70
  6. Step 6: Final answer
    x = 393,880.79

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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.