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Finding the Fourth Proportional to 404,610.80, 607,572.30 and 272,078.60

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Solution

The fourth proportional to 404,610.80, 607,572.30 and 272,078.60 is: 408,559.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,610.80 : 607,572.30 = 272,078.60 : x
  2. Step 2: Convert to fraction form
    404,610.80/607,572.30 = 272,078.60/x
  3. Step 3: Cross multiply
    404,610.80x = 607,572.30 × 272,078.60
  4. Step 4: Simplify right side
    404,610.80x = 165,307,420,782.78
  5. Step 5: Solve for x
    x = 165,307,420,782.78/404,610.80
  6. Step 6: Final answer
    x = 408,559.09

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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.