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Finding the Fourth Proportional to 481,449.95, 664,392.81 and 266,585.40

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Solution

The fourth proportional to 481,449.95, 664,392.81 and 266,585.40 is: 367,883.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    481,449.95 : 664,392.81 = 266,585.40 : x
  2. Step 2: Convert to fraction form
    481,449.95/664,392.81 = 266,585.40/x
  3. Step 3: Cross multiply
    481,449.95x = 664,392.81 × 266,585.40
  4. Step 4: Simplify right side
    481,449.95x = 177,117,423,010.97
  5. Step 5: Solve for x
    x = 177,117,423,010.97/481,449.95
  6. Step 6: Final answer
    x = 367,883.36

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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.