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Finding the Fourth Proportional to 424,722.35, 637,082.87 and 291,197.81

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Solution

The fourth proportional to 424,722.35, 637,082.87 and 291,197.81 is: 436,796.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    424,722.35 : 637,082.87 = 291,197.81 : x
  2. Step 2: Convert to fraction form
    424,722.35/637,082.87 = 291,197.81/x
  3. Step 3: Cross multiply
    424,722.35x = 637,082.87 × 291,197.81
  4. Step 4: Simplify right side
    424,722.35x = 185,517,131,891.11
  5. Step 5: Solve for x
    x = 185,517,131,891.11/424,722.35
  6. Step 6: Final answer
    x = 436,796.26

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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.