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Finding the Fourth Proportional to 622,389.20, 933,238.20 and 267,342.80

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Solution

The fourth proportional to 622,389.20, 933,238.20 and 267,342.80 is: 400,865.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    622,389.20 : 933,238.20 = 267,342.80 : x
  2. Step 2: Convert to fraction form
    622,389.20/933,238.20 = 267,342.80/x
  3. Step 3: Cross multiply
    622,389.20x = 933,238.20 × 267,342.80
  4. Step 4: Simplify right side
    622,389.20x = 249,494,513,454.96
  5. Step 5: Solve for x
    x = 249,494,513,454.96/622,389.20
  6. Step 6: Final answer
    x = 400,865.75

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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.