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Finding the Fourth Proportional to 483,717.60, 725,691.60 and 203,090.40

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Solution

The fourth proportional to 483,717.60, 725,691.60 and 203,090.40 is: 304,683.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    483,717.60 : 725,691.60 = 203,090.40 : x
  2. Step 2: Convert to fraction form
    483,717.60/725,691.60 = 203,090.40/x
  3. Step 3: Cross multiply
    483,717.60x = 725,691.60 × 203,090.40
  4. Step 4: Simplify right side
    483,717.60x = 147,380,997,320.64
  5. Step 5: Solve for x
    x = 147,380,997,320.64/483,717.60
  6. Step 6: Final answer
    x = 304,683.97

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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.