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Finding the Fourth Proportional to 424,891.98, 637,731.63 and 214,677.54

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Solution

The fourth proportional to 424,891.98, 637,731.63 and 214,677.54 is: 322,215.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    424,891.98 : 637,731.63 = 214,677.54 : x
  2. Step 2: Convert to fraction form
    424,891.98/637,731.63 = 214,677.54/x
  3. Step 3: Cross multiply
    424,891.98x = 637,731.63 × 214,677.54
  4. Step 4: Simplify right side
    424,891.98x = 136,906,657,508.59
  5. Step 5: Solve for x
    x = 136,906,657,508.59/424,891.98
  6. Step 6: Final answer
    x = 322,215.21

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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.