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Finding the Fourth Proportional to 355,608.78, 532,767.18 and 205,532.10

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Solution

The fourth proportional to 355,608.78, 532,767.18 and 205,532.10 is: 307,924.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,608.78 : 532,767.18 = 205,532.10 : x
  2. Step 2: Convert to fraction form
    355,608.78/532,767.18 = 205,532.10/x
  3. Step 3: Cross multiply
    355,608.78x = 532,767.18 × 205,532.10
  4. Step 4: Simplify right side
    355,608.78x = 109,500,757,316.48
  5. Step 5: Solve for x
    x = 109,500,757,316.48/355,608.78
  6. Step 6: Final answer
    x = 307,924.79

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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.