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Finding the Fourth Proportional to 479,687.94, 661,970.34 and 264,828.42

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Solution

The fourth proportional to 479,687.94, 661,970.34 and 264,828.42 is: 365,463.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    479,687.94 : 661,970.34 = 264,828.42 : x
  2. Step 2: Convert to fraction form
    479,687.94/661,970.34 = 264,828.42/x
  3. Step 3: Cross multiply
    479,687.94x = 661,970.34 × 264,828.42
  4. Step 4: Simplify right side
    479,687.94x = 175,308,559,229.06
  5. Step 5: Solve for x
    x = 175,308,559,229.06/479,687.94
  6. Step 6: Final answer
    x = 365,463.76

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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.