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Finding the Fourth Proportional to 541,387.70, 812,190.90 and 186,437.60

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Solution

The fourth proportional to 541,387.70, 812,190.90 and 186,437.60 is: 279,694.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    541,387.70 : 812,190.90 = 186,437.60 : x
  2. Step 2: Convert to fraction form
    541,387.70/812,190.90 = 186,437.60/x
  3. Step 3: Cross multiply
    541,387.70x = 812,190.90 × 186,437.60
  4. Step 4: Simplify right side
    541,387.70x = 151,422,922,137.84
  5. Step 5: Solve for x
    x = 151,422,922,137.84/541,387.70
  6. Step 6: Final answer
    x = 279,694.06

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Double scale
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Similar ratio
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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.