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Finding the Fourth Proportional to 481,978.64, 665,130.51 and 267,150.98

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Solution

The fourth proportional to 481,978.64, 665,130.51 and 267,150.98 is: 368,668.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    481,978.64 : 665,130.51 = 267,150.98 : x
  2. Step 2: Convert to fraction form
    481,978.64/665,130.51 = 267,150.98/x
  3. Step 3: Cross multiply
    481,978.64x = 665,130.51 × 267,150.98
  4. Step 4: Simplify right side
    481,978.64x = 177,690,267,574.40
  5. Step 5: Solve for x
    x = 177,690,267,574.40/481,978.64
  6. Step 6: Final answer
    x = 368,668.35

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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.