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Finding the Fourth Proportional to 538,739.70, 808,218.90 and 183,789.60

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Solution

The fourth proportional to 538,739.70, 808,218.90 and 183,789.60 is: 275,721.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    538,739.70 : 808,218.90 = 183,789.60 : x
  2. Step 2: Convert to fraction form
    538,739.70/808,218.90 = 183,789.60/x
  3. Step 3: Cross multiply
    538,739.70x = 808,218.90 × 183,789.60
  4. Step 4: Simplify right side
    538,739.70x = 148,542,228,343.44
  5. Step 5: Solve for x
    x = 148,542,228,343.44/538,739.70
  6. Step 6: Final answer
    x = 275,721.70

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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.