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Finding the Fourth Proportional to 404,145.90, 606,218.85 and 397,233.90

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Solution

The fourth proportional to 404,145.90, 606,218.85 and 397,233.90 is: 595,850.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,145.90 : 606,218.85 = 397,233.90 : x
  2. Step 2: Convert to fraction form
    404,145.90/606,218.85 = 397,233.90/x
  3. Step 3: Cross multiply
    404,145.90x = 606,218.85 × 397,233.90
  4. Step 4: Simplify right side
    404,145.90x = 240,810,678,039.02
  5. Step 5: Solve for x
    x = 240,810,678,039.02/404,145.90
  6. Step 6: Final answer
    x = 595,850.85

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Similar ratio
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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.