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Finding the Fourth Proportional to 481,695.46, 664,780.25 and 266,855.51

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Solution

The fourth proportional to 481,695.46, 664,780.25 and 266,855.51 is: 368,283.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    481,695.46 : 664,780.25 = 266,855.51 : x
  2. Step 2: Convert to fraction form
    481,695.46/664,780.25 = 266,855.51/x
  3. Step 3: Cross multiply
    481,695.46x = 664,780.25 × 266,855.51
  4. Step 4: Simplify right side
    481,695.46x = 177,400,274,980.77
  5. Step 5: Solve for x
    x = 177,400,274,980.77/481,695.46
  6. Step 6: Final answer
    x = 368,283.06

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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.