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Finding the Fourth Proportional to 458,896.46, 688,108.33 and 205,960.11

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Solution

The fourth proportional to 458,896.46, 688,108.33 and 205,960.11 is: 308,834.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    458,896.46 : 688,108.33 = 205,960.11 : x
  2. Step 2: Convert to fraction form
    458,896.46/688,108.33 = 205,960.11/x
  3. Step 3: Cross multiply
    458,896.46x = 688,108.33 × 205,960.11
  4. Step 4: Simplify right side
    458,896.46x = 141,722,866,823.82
  5. Step 5: Solve for x
    x = 141,722,866,823.82/458,896.46
  6. Step 6: Final answer
    x = 308,834.09

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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.