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Finding the Fourth Proportional to 447,559.64, 617,645.42 and 243,623.86

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Solution

The fourth proportional to 447,559.64, 617,645.42 and 243,623.86 is: 336,208.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    447,559.64 : 617,645.42 = 243,623.86 : x
  2. Step 2: Convert to fraction form
    447,559.64/617,645.42 = 243,623.86/x
  3. Step 3: Cross multiply
    447,559.64x = 617,645.42 × 243,623.86
  4. Step 4: Simplify right side
    447,559.64x = 150,473,160,396.67
  5. Step 5: Solve for x
    x = 150,473,160,396.67/447,559.64
  6. Step 6: Final answer
    x = 336,208.07

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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.