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Finding the Fourth Proportional to 554,194.72, 764,797.21 and 324,697.10

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Solution

The fourth proportional to 554,194.72, 764,797.21 and 324,697.10 is: 448,086.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    554,194.72 : 764,797.21 = 324,697.10 : x
  2. Step 2: Convert to fraction form
    554,194.72/764,797.21 = 324,697.10/x
  3. Step 3: Cross multiply
    554,194.72x = 764,797.21 × 324,697.10
  4. Step 4: Simplify right side
    554,194.72x = 248,327,431,539.36
  5. Step 5: Solve for x
    x = 248,327,431,539.36/554,194.72
  6. Step 6: Final answer
    x = 448,086.97

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Half scale
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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 (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.