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Finding the Fourth Proportional to 554,065.23, 764,513.60 and 327,628.11

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Solution

The fourth proportional to 554,065.23, 764,513.60 and 327,628.11 is: 452,069.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    554,065.23 : 764,513.60 = 327,628.11 : x
  2. Step 2: Convert to fraction form
    554,065.23/764,513.60 = 327,628.11/x
  3. Step 3: Cross multiply
    554,065.23x = 764,513.60 × 327,628.11
  4. Step 4: Simplify right side
    554,065.23x = 250,476,144,199.16
  5. Step 5: Solve for x
    x = 250,476,144,199.16/554,065.23
  6. Step 6: Final answer
    x = 452,069.78

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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.