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Finding the Fourth Proportional to 447,606.09, 617,707.89 and 275,460.03

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Solution

The fourth proportional to 447,606.09, 617,707.89 and 275,460.03 is: 380,141.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    447,606.09 : 617,707.89 = 275,460.03 : x
  2. Step 2: Convert to fraction form
    447,606.09/617,707.89 = 275,460.03/x
  3. Step 3: Cross multiply
    447,606.09x = 617,707.89 × 275,460.03
  4. Step 4: Simplify right side
    447,606.09x = 170,153,833,910.64
  5. Step 5: Solve for x
    x = 170,153,833,910.64/447,606.09
  6. Step 6: Final answer
    x = 380,141.91

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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.