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Finding the Fourth Proportional to 486,905.33, 730,336.08 and 327,048.62

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Solution

The fourth proportional to 486,905.33, 730,336.08 and 327,048.62 is: 490,558.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    486,905.33 : 730,336.08 = 327,048.62 : x
  2. Step 2: Convert to fraction form
    486,905.33/730,336.08 = 327,048.62/x
  3. Step 3: Cross multiply
    486,905.33x = 730,336.08 × 327,048.62
  4. Step 4: Simplify right side
    486,905.33x = 238,855,403,448.53
  5. Step 5: Solve for x
    x = 238,855,403,448.53/486,905.33
  6. Step 6: Final answer
    x = 490,558.20

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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.