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Finding the Fourth Proportional to 438,751.92, 605,688.17 and 277,685.04

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Solution

The fourth proportional to 438,751.92, 605,688.17 and 277,685.04 is: 383,338.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,751.92 : 605,688.17 = 277,685.04 : x
  2. Step 2: Convert to fraction form
    438,751.92/605,688.17 = 277,685.04/x
  3. Step 3: Cross multiply
    438,751.92x = 605,688.17 × 277,685.04
  4. Step 4: Simplify right side
    438,751.92x = 168,190,542,325.55
  5. Step 5: Solve for x
    x = 168,190,542,325.55/438,751.92
  6. Step 6: Final answer
    x = 383,338.59

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.