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Finding the Fourth Proportional to 480,729.63, 720,585.96 and 181,080.56

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Solution

The fourth proportional to 480,729.63, 720,585.96 and 181,080.56 is: 271,429.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    480,729.63 : 720,585.96 = 181,080.56 : x
  2. Step 2: Convert to fraction form
    480,729.63/720,585.96 = 181,080.56/x
  3. Step 3: Cross multiply
    480,729.63x = 720,585.96 × 181,080.56
  4. Step 4: Simplify right side
    480,729.63x = 130,484,105,562.01
  5. Step 5: Solve for x
    x = 130,484,105,562.01/480,729.63
  6. Step 6: Final answer
    x = 271,429.30

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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.