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Finding the Fourth Proportional to 415,037.60, 622,556.40 and 415,037.60

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Solution

The fourth proportional to 415,037.60, 622,556.40 and 415,037.60 is: 622,556.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    415,037.60 : 622,556.40 = 415,037.60 : x
  2. Step 2: Convert to fraction form
    415,037.60/622,556.40 = 415,037.60/x
  3. Step 3: Cross multiply
    415,037.60x = 622,556.40 × 415,037.60
  4. Step 4: Simplify right side
    415,037.60x = 258,384,314,120.64
  5. Step 5: Solve for x
    x = 258,384,314,120.64/415,037.60
  6. Step 6: Final answer
    x = 622,556.40

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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.