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Finding the Fourth Proportional to 480,728.63, 720,584.46 and 181,079.56

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Solution

The fourth proportional to 480,728.63, 720,584.46 and 181,079.56 is: 271,427.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    480,728.63 : 720,584.46 = 181,079.56 : x
  2. Step 2: Convert to fraction form
    480,728.63/720,584.46 = 181,079.56/x
  3. Step 3: Cross multiply
    480,728.63x = 720,584.46 × 181,079.56
  4. Step 4: Simplify right side
    480,728.63x = 130,483,116,959.64
  5. Step 5: Solve for x
    x = 130,483,116,959.64/480,728.63
  6. Step 6: Final answer
    x = 271,427.81

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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.