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Finding the Fourth Proportional to 485,588.90, 728,405.22 and 182,055.18

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Solution

The fourth proportional to 485,588.90, 728,405.22 and 182,055.18 is: 273,090.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    485,588.90 : 728,405.22 = 182,055.18 : x
  2. Step 2: Convert to fraction form
    485,588.90/728,405.22 = 182,055.18/x
  3. Step 3: Cross multiply
    485,588.90x = 728,405.22 × 182,055.18
  4. Step 4: Simplify right side
    485,588.90x = 132,609,943,440.04
  5. Step 5: Solve for x
    x = 132,609,943,440.04/485,588.90
  6. Step 6: Final answer
    x = 273,090.97

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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.