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Finding the Fourth Proportional to 424,715.48, 637,467.08 and 214,500.92

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Solution

The fourth proportional to 424,715.48, 637,467.08 and 214,500.92 is: 321,950.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    424,715.48 : 637,467.08 = 214,500.92 : x
  2. Step 2: Convert to fraction form
    424,715.48/637,467.08 = 214,500.92/x
  3. Step 3: Cross multiply
    424,715.48x = 637,467.08 × 214,500.92
  4. Step 4: Simplify right side
    424,715.48x = 136,737,275,129.71
  5. Step 5: Solve for x
    x = 136,737,275,129.71/424,715.48
  6. Step 6: Final answer
    x = 321,950.30

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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.