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Finding the Fourth Proportional to 471,891.30, 651,186.99 and 267,915.48

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Solution

The fourth proportional to 471,891.30, 651,186.99 and 267,915.48 is: 369,710.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    471,891.30 : 651,186.99 = 267,915.48 : x
  2. Step 2: Convert to fraction form
    471,891.30/651,186.99 = 267,915.48/x
  3. Step 3: Cross multiply
    471,891.30x = 651,186.99 × 267,915.48
  4. Step 4: Simplify right side
    471,891.30x = 174,463,074,995.61
  5. Step 5: Solve for x
    x = 174,463,074,995.61/471,891.30
  6. Step 6: Final answer
    x = 369,710.30

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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.