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Finding the Fourth Proportional to 481,925.60, 665,061.20 and 267,069.20

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Solution

The fourth proportional to 481,925.60, 665,061.20 and 267,069.20 is: 368,557.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    481,925.60 : 665,061.20 = 267,069.20 : x
  2. Step 2: Convert to fraction form
    481,925.60/665,061.20 = 267,069.20/x
  3. Step 3: Cross multiply
    481,925.60x = 665,061.20 × 267,069.20
  4. Step 4: Simplify right side
    481,925.60x = 177,617,362,635.04
  5. Step 5: Solve for x
    x = 177,617,362,635.04/481,925.60
  6. Step 6: Final answer
    x = 368,557.64

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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.