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Finding the Fourth Proportional to 481,540.04, 722,605.30 and 215,525.51

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Solution

The fourth proportional to 481,540.04, 722,605.30 and 215,525.51 is: 323,420.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    481,540.04 : 722,605.30 = 215,525.51 : x
  2. Step 2: Convert to fraction form
    481,540.04/722,605.30 = 215,525.51/x
  3. Step 3: Cross multiply
    481,540.04x = 722,605.30 × 215,525.51
  4. Step 4: Simplify right side
    481,540.04x = 155,739,875,811.20
  5. Step 5: Solve for x
    x = 155,739,875,811.20/481,540.04
  6. Step 6: Final answer
    x = 323,420.41

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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.