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Finding the Fourth Proportional to 404,579.80, 607,525.80 and 272,047.60

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Solution

The fourth proportional to 404,579.80, 607,525.80 and 272,047.60 is: 408,512.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,579.80 : 607,525.80 = 272,047.60 : x
  2. Step 2: Convert to fraction form
    404,579.80/607,525.80 = 272,047.60/x
  3. Step 3: Cross multiply
    404,579.80x = 607,525.80 × 272,047.60
  4. Step 4: Simplify right side
    404,579.80x = 165,275,935,828.08
  5. Step 5: Solve for x
    x = 165,275,935,828.08/404,579.80
  6. Step 6: Final answer
    x = 408,512.57

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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.