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Finding the Fourth Proportional to 367,579.60, 515,661.20 and 367,579.60

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Solution

The fourth proportional to 367,579.60, 515,661.20 and 367,579.60 is: 515,661.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    367,579.60 : 515,661.20 = 367,579.60 : x
  2. Step 2: Convert to fraction form
    367,579.60/515,661.20 = 367,579.60/x
  3. Step 3: Cross multiply
    367,579.60x = 515,661.20 × 367,579.60
  4. Step 4: Simplify right side
    367,579.60x = 189,546,537,631.52
  5. Step 5: Solve for x
    x = 189,546,537,631.52/367,579.60
  6. Step 6: Final answer
    x = 515,661.20

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.