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Finding the Fourth Proportional to 471,665.32, 650,865.26 and 267,720.40

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Solution

The fourth proportional to 471,665.32, 650,865.26 and 267,720.40 is: 369,435.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    471,665.32 : 650,865.26 = 267,720.40 : x
  2. Step 2: Convert to fraction form
    471,665.32/650,865.26 = 267,720.40/x
  3. Step 3: Cross multiply
    471,665.32x = 650,865.26 × 267,720.40
  4. Step 4: Simplify right side
    471,665.32x = 174,249,907,753.30
  5. Step 5: Solve for x
    x = 174,249,907,753.30/471,665.32
  6. Step 6: Final answer
    x = 369,435.49

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.