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Finding the Fourth Proportional to 447,594.53, 617,688.30 and 243,651.30

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Solution

The fourth proportional to 447,594.53, 617,688.30 and 243,651.30 is: 336,243.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    447,594.53 : 617,688.30 = 243,651.30 : x
  2. Step 2: Convert to fraction form
    447,594.53/617,688.30 = 243,651.30/x
  3. Step 3: Cross multiply
    447,594.53x = 617,688.30 × 243,651.30
  4. Step 4: Simplify right side
    447,594.53x = 150,500,557,289.79
  5. Step 5: Solve for x
    x = 150,500,557,289.79/447,594.53
  6. Step 6: Final answer
    x = 336,243.07

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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.