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Finding the Fourth Proportional to 484,113.60, 725,911.20 and 203,313.60

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Solution

The fourth proportional to 484,113.60, 725,911.20 and 203,313.60 is: 304,861.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    484,113.60 : 725,911.20 = 203,313.60 : x
  2. Step 2: Convert to fraction form
    484,113.60/725,911.20 = 203,313.60/x
  3. Step 3: Cross multiply
    484,113.60x = 725,911.20 × 203,313.60
  4. Step 4: Simplify right side
    484,113.60x = 147,587,619,352.32
  5. Step 5: Solve for x
    x = 147,587,619,352.32/484,113.60
  6. Step 6: Final answer
    x = 304,861.54

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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.