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Finding the Fourth Proportional to 483,520.64, 725,358.72 and 203,118.08

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Solution

The fourth proportional to 483,520.64, 725,358.72 and 203,118.08 is: 304,709.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    483,520.64 : 725,358.72 = 203,118.08 : x
  2. Step 2: Convert to fraction form
    483,520.64/725,358.72 = 203,118.08/x
  3. Step 3: Cross multiply
    483,520.64x = 725,358.72 × 203,118.08
  4. Step 4: Simplify right side
    483,520.64x = 147,333,470,517.66
  5. Step 5: Solve for x
    x = 147,333,470,517.66/483,520.64
  6. Step 6: Final answer
    x = 304,709.79

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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.