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Finding the Fourth Proportional to 447,571.93, 617,662.86 and 316,983.53

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Solution

The fourth proportional to 447,571.93, 617,662.86 and 316,983.53 is: 437,446.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    447,571.93 : 617,662.86 = 316,983.53 : x
  2. Step 2: Convert to fraction form
    447,571.93/617,662.86 = 316,983.53/x
  3. Step 3: Cross multiply
    447,571.93x = 617,662.86 × 316,983.53
  4. Step 4: Simplify right side
    447,571.93x = 195,788,953,712.70
  5. Step 5: Solve for x
    x = 195,788,953,712.70/447,571.93
  6. Step 6: Final answer
    x = 437,446.90

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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.