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Finding the Fourth Proportional to 366,218.60, 548,918.30 and 208,522.60

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Solution

The fourth proportional to 366,218.60, 548,918.30 and 208,522.60 is: 312,550.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    366,218.60 : 548,918.30 = 208,522.60 : x
  2. Step 2: Convert to fraction form
    366,218.60/548,918.30 = 208,522.60/x
  3. Step 3: Cross multiply
    366,218.60x = 548,918.30 × 208,522.60
  4. Step 4: Simplify right side
    366,218.60x = 114,461,871,103.58
  5. Step 5: Solve for x
    x = 114,461,871,103.58/366,218.60
  6. Step 6: Final answer
    x = 312,550.68

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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.