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Finding the Fourth Proportional to 484,138.60, 725,948.70 and 203,338.60

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Solution

The fourth proportional to 484,138.60, 725,948.70 and 203,338.60 is: 304,899.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    484,138.60 : 725,948.70 = 203,338.60 : x
  2. Step 2: Convert to fraction form
    484,138.60/725,948.70 = 203,338.60/x
  3. Step 3: Cross multiply
    484,138.60x = 725,948.70 × 203,338.60
  4. Step 4: Simplify right side
    484,138.60x = 147,613,392,329.82
  5. Step 5: Solve for x
    x = 147,613,392,329.82/484,138.60
  6. Step 6: Final answer
    x = 304,899.04

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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.