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Finding the Fourth Proportional to 424,736.91, 637,400.45 and 274,604.83

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Solution

The fourth proportional to 424,736.91, 637,400.45 and 274,604.83 is: 412,098.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    424,736.91 : 637,400.45 = 274,604.83 : x
  2. Step 2: Convert to fraction form
    424,736.91/637,400.45 = 274,604.83/x
  3. Step 3: Cross multiply
    424,736.91x = 637,400.45 × 274,604.83
  4. Step 4: Simplify right side
    424,736.91x = 175,033,241,307.18
  5. Step 5: Solve for x
    x = 175,033,241,307.18/424,736.91
  6. Step 6: Final answer
    x = 412,098.02

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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.