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Finding the Fourth Proportional to 604,090.45, 906,073.26 and 204,720.85

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Solution

The fourth proportional to 604,090.45, 906,073.26 and 204,720.85 is: 307,060.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    604,090.45 : 906,073.26 = 204,720.85 : x
  2. Step 2: Convert to fraction form
    604,090.45/906,073.26 = 204,720.85/x
  3. Step 3: Cross multiply
    604,090.45x = 906,073.26 × 204,720.85
  4. Step 4: Simplify right side
    604,090.45x = 185,492,087,949.47
  5. Step 5: Solve for x
    x = 185,492,087,949.47/604,090.45
  6. Step 6: Final answer
    x = 307,060.12

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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.