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Finding the Fourth Proportional to 622,171.20, 932,565.60 and 267,124.80

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Solution

The fourth proportional to 622,171.20, 932,565.60 and 267,124.80 is: 400,390.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    622,171.20 : 932,565.60 = 267,124.80 : x
  2. Step 2: Convert to fraction form
    622,171.20/932,565.60 = 267,124.80/x
  3. Step 3: Cross multiply
    622,171.20x = 932,565.60 × 267,124.80
  4. Step 4: Simplify right side
    622,171.20x = 249,111,399,386.88
  5. Step 5: Solve for x
    x = 249,111,399,386.88/622,171.20
  6. Step 6: Final answer
    x = 400,390.44

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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.