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Finding the Fourth Proportional to 424,842.48, 637,657.92 and 214,628.04

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Solution

The fourth proportional to 424,842.48, 637,657.92 and 214,628.04 is: 322,141.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    424,842.48 : 637,657.92 = 214,628.04 : x
  2. Step 2: Convert to fraction form
    424,842.48/637,657.92 = 214,628.04/x
  3. Step 3: Cross multiply
    424,842.48x = 637,657.92 × 214,628.04
  4. Step 4: Simplify right side
    424,842.48x = 136,859,269,560.08
  5. Step 5: Solve for x
    x = 136,859,269,560.08/424,842.48
  6. Step 6: Final answer
    x = 322,141.21

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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.