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Finding the Fourth Proportional to 553,919.60, 764,405.16 and 327,560.24

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Solution

The fourth proportional to 553,919.60, 764,405.16 and 327,560.24 is: 452,030.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    553,919.60 : 764,405.16 = 327,560.24 : x
  2. Step 2: Convert to fraction form
    553,919.60/764,405.16 = 327,560.24/x
  3. Step 3: Cross multiply
    553,919.60x = 764,405.16 × 327,560.24
  4. Step 4: Simplify right side
    553,919.60x = 250,388,737,666.84
  5. Step 5: Solve for x
    x = 250,388,737,666.84/553,919.60
  6. Step 6: Final answer
    x = 452,030.83

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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.