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Finding the Fourth Proportional to 481,935.60, 665,075.04 and 267,079.20

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Solution

The fourth proportional to 481,935.60, 665,075.04 and 267,079.20 is: 368,571.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    481,935.60 : 665,075.04 = 267,079.20 : x
  2. Step 2: Convert to fraction form
    481,935.60/665,075.04 = 267,079.20/x
  3. Step 3: Cross multiply
    481,935.60x = 665,075.04 × 267,079.20
  4. Step 4: Simplify right side
    481,935.60x = 177,627,709,623.17
  5. Step 5: Solve for x
    x = 177,627,709,623.17/481,935.60
  6. Step 6: Final answer
    x = 368,571.46

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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.