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Finding the Fourth Proportional to 604,091.45, 906,074.76 and 204,721.85

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Solution

The fourth proportional to 604,091.45, 906,074.76 and 204,721.85 is: 307,061.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    604,091.45 : 906,074.76 = 204,721.85 : x
  2. Step 2: Convert to fraction form
    604,091.45/906,074.76 = 204,721.85/x
  3. Step 3: Cross multiply
    604,091.45x = 906,074.76 × 204,721.85
  4. Step 4: Simplify right side
    604,091.45x = 185,493,301,105.51
  5. Step 5: Solve for x
    x = 185,493,301,105.51/604,091.45
  6. Step 6: Final answer
    x = 307,061.62

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.