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Finding the Fourth Proportional to 493,531.21, 740,296.83 and 177,988.12

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Solution

The fourth proportional to 493,531.21, 740,296.83 and 177,988.12 is: 266,982.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    493,531.21 : 740,296.83 = 177,988.12 : x
  2. Step 2: Convert to fraction form
    493,531.21/740,296.83 = 177,988.12/x
  3. Step 3: Cross multiply
    493,531.21x = 740,296.83 × 177,988.12
  4. Step 4: Simplify right side
    493,531.21x = 131,764,039,830.37
  5. Step 5: Solve for x
    x = 131,764,039,830.37/493,531.21
  6. Step 6: Final answer
    x = 266,982.18

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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.