Home / 481,255.09-664,123.96-266,390.53

Finding the Fourth Proportional to 481,255.09, 664,123.96 and 266,390.53

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Solution

The fourth proportional to 481,255.09, 664,123.96 and 266,390.53 is: 367,614.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    481,255.09 : 664,123.96 = 266,390.53 : x
  2. Step 2: Convert to fraction form
    481,255.09/664,123.96 = 266,390.53/x
  3. Step 3: Cross multiply
    481,255.09x = 664,123.96 × 266,390.53
  4. Step 4: Simplify right side
    481,255.09x = 176,916,333,690.10
  5. Step 5: Solve for x
    x = 176,916,333,690.10/481,255.09
  6. Step 6: Final answer
    x = 367,614.47

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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.