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Finding the Fourth Proportional to 484,812.50, 727,297.53 and 143,290.58

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Solution

The fourth proportional to 484,812.50, 727,297.53 and 143,290.58 is: 214,959.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    484,812.50 : 727,297.53 = 143,290.58 : x
  2. Step 2: Convert to fraction form
    484,812.50/727,297.53 = 143,290.58/x
  3. Step 3: Cross multiply
    484,812.50x = 727,297.53 × 143,290.58
  4. Step 4: Simplify right side
    484,812.50x = 104,214,884,906.27
  5. Step 5: Solve for x
    x = 104,214,884,906.27/484,812.50
  6. Step 6: Final answer
    x = 214,959.15

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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.