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Finding the Fourth Proportional to 622,147.60, 932,453.40 and 422,467.60

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Solution

The fourth proportional to 622,147.60, 932,453.40 and 422,467.60 is: 633,179.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    622,147.60 : 932,453.40 = 422,467.60 : x
  2. Step 2: Convert to fraction form
    622,147.60/932,453.40 = 422,467.60/x
  3. Step 3: Cross multiply
    622,147.60x = 932,453.40 × 422,467.60
  4. Step 4: Simplify right side
    622,147.60x = 393,931,350,009.84
  5. Step 5: Solve for x
    x = 393,931,350,009.84/622,147.60
  6. Step 6: Final answer
    x = 633,179.89

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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.