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Finding the Fourth Proportional to 541,291.20, 812,131.20 and 225,844.80

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Solution

The fourth proportional to 541,291.20, 812,131.20 and 225,844.80 is: 338,848.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    541,291.20 : 812,131.20 = 225,844.80 : x
  2. Step 2: Convert to fraction form
    541,291.20/812,131.20 = 225,844.80/x
  3. Step 3: Cross multiply
    541,291.20x = 812,131.20 × 225,844.80
  4. Step 4: Simplify right side
    541,291.20x = 183,415,608,437.76
  5. Step 5: Solve for x
    x = 183,415,608,437.76/541,291.20
  6. Step 6: Final answer
    x = 338,848.31

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Double scale
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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.