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Finding the Fourth Proportional to 481,398.86, 664,351.19 and 266,538.93

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Solution

The fourth proportional to 481,398.86, 664,351.19 and 266,538.93 is: 367,835.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    481,398.86 : 664,351.19 = 266,538.93 : x
  2. Step 2: Convert to fraction form
    481,398.86/664,351.19 = 266,538.93/x
  3. Step 3: Cross multiply
    481,398.86x = 664,351.19 × 266,538.93
  4. Step 4: Simplify right side
    481,398.86x = 177,075,455,326.83
  5. Step 5: Solve for x
    x = 177,075,455,326.83/481,398.86
  6. Step 6: Final answer
    x = 367,835.22

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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.