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Finding the Fourth Proportional to 357,908.35, 535,694.30 and 263,113.44

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Solution

The fourth proportional to 357,908.35, 535,694.30 and 263,113.44 is: 393,811.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    357,908.35 : 535,694.30 = 263,113.44 : x
  2. Step 2: Convert to fraction form
    357,908.35/535,694.30 = 263,113.44/x
  3. Step 3: Cross multiply
    357,908.35x = 535,694.30 × 263,113.44
  4. Step 4: Simplify right side
    357,908.35x = 140,948,369,732.50
  5. Step 5: Solve for x
    x = 140,948,369,732.50/357,908.35
  6. Step 6: Final answer
    x = 393,811.35

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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.