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Finding the Fourth Proportional to 436,157.90, 654,236.85 and 404,665.10

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Solution

The fourth proportional to 436,157.90, 654,236.85 and 404,665.10 is: 606,997.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    436,157.90 : 654,236.85 = 404,665.10 : x
  2. Step 2: Convert to fraction form
    436,157.90/654,236.85 = 404,665.10/x
  3. Step 3: Cross multiply
    436,157.90x = 654,236.85 × 404,665.10
  4. Step 4: Simplify right side
    436,157.90x = 264,746,820,328.94
  5. Step 5: Solve for x
    x = 264,746,820,328.94/436,157.90
  6. Step 6: Final answer
    x = 606,997.65

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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.