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Finding the Fourth Proportional to 263,886.10, 395,083.95 and 205,404.10

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Solution

The fourth proportional to 263,886.10, 395,083.95 and 205,404.10 is: 307,526.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    263,886.10 : 395,083.95 = 205,404.10 : x
  2. Step 2: Convert to fraction form
    263,886.10/395,083.95 = 205,404.10/x
  3. Step 3: Cross multiply
    263,886.10x = 395,083.95 × 205,404.10
  4. Step 4: Simplify right side
    263,886.10x = 81,151,863,174.20
  5. Step 5: Solve for x
    x = 81,151,863,174.20/263,886.10
  6. Step 6: Final answer
    x = 307,526.10

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1.5x scale

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.