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Finding the Fourth Proportional to 480,728.13, 720,583.71 and 181,079.06

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Solution

The fourth proportional to 480,728.13, 720,583.71 and 181,079.06 is: 271,427.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    480,728.13 : 720,583.71 = 181,079.06 : x
  2. Step 2: Convert to fraction form
    480,728.13/720,583.71 = 181,079.06/x
  3. Step 3: Cross multiply
    480,728.13x = 720,583.71 × 181,079.06
  4. Step 4: Simplify right side
    480,728.13x = 130,482,620,858.11
  5. Step 5: Solve for x
    x = 130,482,620,858.11/480,728.13
  6. Step 6: Final answer
    x = 271,427.06

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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.