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Finding the Fourth Proportional to 481,066.88, 663,862.36 and 266,206.80

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Solution

The fourth proportional to 481,066.88, 663,862.36 and 266,206.80 is: 367,359.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    481,066.88 : 663,862.36 = 266,206.80 : x
  2. Step 2: Convert to fraction form
    481,066.88/663,862.36 = 266,206.80/x
  3. Step 3: Cross multiply
    481,066.88x = 663,862.36 × 266,206.80
  4. Step 4: Simplify right side
    481,066.88x = 176,724,674,496.05
  5. Step 5: Solve for x
    x = 176,724,674,496.05/481,066.88
  6. Step 6: Final answer
    x = 367,359.89

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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.