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Finding the Fourth Proportional to 481,539.04, 722,603.80 and 215,524.51

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Solution

The fourth proportional to 481,539.04, 722,603.80 and 215,524.51 is: 323,418.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    481,539.04 : 722,603.80 = 215,524.51 : x
  2. Step 2: Convert to fraction form
    481,539.04/722,603.80 = 215,524.51/x
  3. Step 3: Cross multiply
    481,539.04x = 722,603.80 × 215,524.51
  4. Step 4: Simplify right side
    481,539.04x = 155,738,828,382.03
  5. Step 5: Solve for x
    x = 155,738,828,382.03/481,539.04
  6. Step 6: Final answer
    x = 323,418.91

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.