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Finding the Fourth Proportional to 404,581.80, 607,528.80 and 272,049.60

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Solution

The fourth proportional to 404,581.80, 607,528.80 and 272,049.60 is: 408,515.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,581.80 : 607,528.80 = 272,049.60 : x
  2. Step 2: Convert to fraction form
    404,581.80/607,528.80 = 272,049.60/x
  3. Step 3: Cross multiply
    404,581.80x = 607,528.80 × 272,049.60
  4. Step 4: Simplify right side
    404,581.80x = 165,277,967,028.48
  5. Step 5: Solve for x
    x = 165,277,967,028.48/404,581.80
  6. Step 6: Final answer
    x = 408,515.58

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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.