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Finding the Fourth Proportional to 554,183.80, 764,772.78 and 327,830.20

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Solution

The fourth proportional to 554,183.80, 764,772.78 and 327,830.20 is: 452,405.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    554,183.80 : 764,772.78 = 327,830.20 : x
  2. Step 2: Convert to fraction form
    554,183.80/764,772.78 = 327,830.20/x
  3. Step 3: Cross multiply
    554,183.80x = 764,772.78 × 327,830.20
  4. Step 4: Simplify right side
    554,183.80x = 250,715,613,421.96
  5. Step 5: Solve for x
    x = 250,715,613,421.96/554,183.80
  6. Step 6: Final answer
    x = 452,405.16

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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.