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Finding the Fourth Proportional to 404,680.26, 603,502.96 and 399,250.42

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Solution

The fourth proportional to 404,680.26, 603,502.96 and 399,250.42 is: 595,405.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,680.26 : 603,502.96 = 399,250.42 : x
  2. Step 2: Convert to fraction form
    404,680.26/603,502.96 = 399,250.42/x
  3. Step 3: Cross multiply
    404,680.26x = 603,502.96 × 399,250.42
  4. Step 4: Simplify right side
    404,680.26x = 240,948,810,251.24
  5. Step 5: Solve for x
    x = 240,948,810,251.24/404,680.26
  6. Step 6: Final answer
    x = 595,405.40

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.