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Finding the Fourth Proportional to 604,111.60, 906,138.60 and 204,713.20

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Solution

The fourth proportional to 604,111.60, 906,138.60 and 204,713.20 is: 307,060.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    604,111.60 : 906,138.60 = 204,713.20 : x
  2. Step 2: Convert to fraction form
    604,111.60/906,138.60 = 204,713.20/x
  3. Step 3: Cross multiply
    604,111.60x = 906,138.60 × 204,713.20
  4. Step 4: Simplify right side
    604,111.60x = 185,498,532,449.52
  5. Step 5: Solve for x
    x = 185,498,532,449.52/604,111.60
  6. Step 6: Final answer
    x = 307,060.04

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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.