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Finding the Fourth Proportional to 539,177.80, 809,422.80 and 272,801.20

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Solution

The fourth proportional to 539,177.80, 809,422.80 and 272,801.20 is: 409,533.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    539,177.80 : 809,422.80 = 272,801.20 : x
  2. Step 2: Convert to fraction form
    539,177.80/809,422.80 = 272,801.20/x
  3. Step 3: Cross multiply
    539,177.80x = 809,422.80 × 272,801.20
  4. Step 4: Simplify right side
    539,177.80x = 220,811,511,147.36
  5. Step 5: Solve for x
    x = 220,811,511,147.36/539,177.80
  6. Step 6: Final answer
    x = 409,533.76

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1.5x scale

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.